21727-400 FIND 8
View detailed technical data, stock status, and sourcing information for: 21727-400 FIND 8
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Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5331 O-Ring
National Stock Number
5331-00-166-0988
Item Name Code
47946
Assigment Date
11/19/1971 (54 years ago)
75.0 shore durometer a nominal hardness rating, 0.421 inches minimum and 0.431 inches maximum center hole diameter, 0.555 inches minimum and 0.577 inches maximum outside diameter, 0.067 inches minimum and 0.073 inches maximum cross-sectional height, 125 maximum elongation percentage
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Outside Diameter
- 0.555 inches minimum and 0.577 inches maximum
- Cross-Sectional Height
- 0.067 inches minimum and 0.073 inches maximum
- Center Hole Diameter
- 0.421 inches minimum and 0.431 inches maximum
- Elongation Percentage
- 125 maximum
- Hardness Rating
- 75.0 shore durometer a nominal
- Part Name Assigned By Controlling Agency
- packing,preformed
- Material
- rubber fluorocarbon class fpm
- Material Document And Classification
- ams 7276 assn std single material response
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5330-00-073-8161 | No Name Available | 09/01/1992 |
| 5330-00-087-3769 | No Name Available | 07/01/1991 |
| 5330-00-111-7837 | No Name Available | 03/01/1985 |
| 5330-00-145-2410 | No Name Available | 01/01/1992 |
| 5330-00-245-6113 | No Name Available | 07/01/1991 |
| 5330-00-399-7150 | No Name Available | 05/01/1985 |
| 5330-00-566-7175 | No Name Available | 07/01/1977 |
| 5330-00-587-3800 | No Name Available | 10/01/1975 |
| 5330-00-618-3737 | No Name Available | 03/01/1980 |
| 5330-00-827-9153 | No Name Available | 05/14/1974 |
| 5330-00-834-8442 | No Name Available | 11/24/2003 |
| 5330-00-882-1689 | No Name Available | 10/01/1980 |
| 5330-00-892-4155 | No Name Available | 09/21/2012 |
| 5330-00-930-6284 | No Name Available | 04/01/1986 |
| 5330-00-933-1361 | No Name Available | 08/01/1985 |
| 5330-00-952-6621 | No Name Available | 06/01/1988 |
| 5331-01-009-3986 | No Name Available | 06/01/2007 |
| 5330-01-044-0782 | No Name Available | 04/01/1997 |
| 5330-01-171-0426 | No Name Available | 01/01/1997 |
| 5330-01-187-3845 | No Name Available | 04/01/1986 |
| 5330-01-207-1502 | No Name Available | 07/01/1992 |
| 5331-01-271-9376 | No Name Available | 10/01/2007 |
| 5330-01-345-4352 | No Name Available | 01/01/1992 |
Related Parts
This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5331-00-166-0988?
The FSCG of the NSN 5331-00-166-0988 is 5331
Does the NSN 5331-00-166-0988 have a Schedule B code assigned?
Yes, the Schedule B code is 4016930000
Does NSN 5331-00-166-0988 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 5331-00-166-0988 contain precious materials?
Item does not contain precious metal.
Does NSN 5331-00-166-0988 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 5331-00-166-0988 was assigned to the Federal Catalog?
It was assigned 54 years ago, on Fri, Nov 19, 1971
Professional Distribution
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Pricing
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In Stock
This item is currently available and ready for prompt shipment. Units may be offered in various conditions — new, surplus, or refurbished — and stored at verified global facilities. Request a quote to confirm current stock and delivery time.
| As Removed | 1 |
| New Material | 4,974 |
| New Surplus | 798 |
| Serviceable | 15 |
| Overhauled | 1 |
| As Removed | 1 |
| New Material | 19,917 |
| New Surplus | 633 |
| Overhauled | 1 |
| Serviceable | 15 |
| Total | 26,356 |
Availability of this item was last updated on:
05/22/2026 11:05 AM EDT.
Stock levels and pricing are subject to change.