21788-00972

View detailed technical data, stock status, and sourcing information for: 21788-00972
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-771-7396

Item Name Code

05280

Assigment Date

01/01/1960 (66 years ago)

right-hand thread direction, 3b thread class, prevailing torque all metal design locking feature, 0.178 inches minimum and 0.270 inches maximum nut counterbore diameter, dry film lubricant lubrication

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 3b
Thread Direction: right-hand
Locking Feature: prevailing torque all metal design
Counterbore Diameter: 0.178 inches minimum and 0.270 inches maximum nut
Lubrication: dry film lubricant
Mounting Hole Diameter: 0.098 inches minimum and 0.103 inches maximum
Nut Style: plate
Nut Length: 0.682 inches maximum
Nut Height: 0.171 inches maximum
Plate Thickness: 0.140 inches maximum
Plate Width: 0.290 inches minimum and 0.357 inches maximum
Nut Counterbore Depth: 0.140 inches nominal nut
Nut Mounting Provision: straight holes
Mounting Hole Arrangement Style: 2 holes
Distance From Aperture Center To Mounting Hole Center: 0.213 inches minimum and 0.223 inches maximum
Center To Center Distance Between Mounting Holes Along Length: 0.435 inches minimum and 0.439 inches maximum
Temp Rating: 450.0 fahrenheit nominal
Thread Series: unjc
Features Provided: floating nut
Thread Quantity Per Inch: 32
Nominal Thread Size: 0.138 inches
Material: iron alloy 660 overall
Material Document And Classification: ams 5735 assn std single material response or ams 5737 assn std single material response or ams 5525 assn std single material response overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-989-7773	No Name Available	11/01/2012
5310-01-330-5233	No Name Available	08/01/1998

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:

Part Number	Name
107213-102	Plate Self-Locking Nut
21788-00972	Plate Self-Locking Nut
222625-008	Plate Self-Locking Nut
2JC2772H09	Plate Self-Locking Nut
418470-706	Plate Self-Locking Nut
457-5578	Plate Self-Locking Nut
5310007717396	Plate Self-Locking Nut
5310PL0730435	Plate Self-Locking Nut
62175-055 ITEM 2	Plate Self-Locking Nut
62175-055/2	Plate Self-Locking Nut
62175-057 ITEM 2	Plate Self-Locking Nut
62175-057 ITEM 75	Plate Self-Locking Nut
682655-43	Plate Self-Locking Nut
946963-8	Plate Self-Locking Nut
B68865	Plate Self-Locking Nut
MF5001-06	Plate Self-Locking Nut
MS21076A06	Plate Self-Locking Nut
MS21076L06	Plate Self-Locking Nut
MTPH65S632S	Plate Self-Locking Nut
MTPHL65C632CM	Plate Self-Locking Nut
NAS1068A06	Plate Self-Locking Nut
RFM20C06M	Plate Self-Locking Nut
RM52LHTA521M62	Plate Self-Locking Nut

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5310-00-771-7396?

The FSCG of the NSN 5310-00-771-7396 is 5310

Does the NSN 5310-00-771-7396 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-771-7396 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 5310-00-771-7396 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-00-771-7396 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 5310-00-771-7396 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960