1 3/4-8UN-3B-X4

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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-335-0167

Item Name Code

01857

Assigment Date

03/05/1991 (35 years ago)

zzzy criticality code justification, un thread series, 1.750 inches nominal thread size, 8 thread quantity per inch, used on ball valve,combination hull and backup,nut 4.000 in long special features

Product Characteristics

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

Thread Series: un
Thread Quantity Per Inch: 8
Nominal Thread Size: 1.750 inches
Criticality Code Justification: zzzy
Special Features: used on ball valve,combination hull and backup,nut 4.000 in long
Material: nickel alloy overall
Material Document And Classification: qq-n-286,form 2 fed spec single material response overall
Reference Number Differentiating Characteristics: material controlled iaw navsea 0948-lp-045-7010 material control standard for level i items

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-01-422-2645	No Name Available	09/01/1999

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
1 3/4-8UN-3B-X4	Hexagon Plain Nut
1 3/4-8UN-3B-X4L1	Hexagon Plain Nut
211069418L1	Hexagon Plain Nut
801-6408529 FIND 69	Hexagon Plain Nut
801-6408529 FIND 69L1	Hexagon Plain Nut
801-6408529-69	Hexagon Plain Nut
801-6408529-69L1	Hexagon Plain Nut
803-4385050 PIECE 69	Hexagon Plain Nut
803-4385050 PIECE 69L1	Hexagon Plain Nut
DF330613 FIND 69	Hexagon Plain Nut
DF330613 FIND 69L1	Hexagon Plain Nut
DF330613-69	Hexagon Plain Nut
DF330613-69L1	Hexagon Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-01-335-0167?

The FSCG of the NSN 5310-01-335-0167 is 5310

Does the NSN 5310-01-335-0167 have a Schedule B code assigned?

Yes, the Schedule B code is 7508900000

Does NSN 5310-01-335-0167 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 5310-01-335-0167 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-335-0167 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 5310-01-335-0167 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Tue, Mar 5, 1991