Home · FSC 5310 Nuts And Washers · NSN 5310-01-310-9289

NSN 5310-01-310-9289 — Nut,Self-Locking,Round

NIIN 01-310-9289 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

NSN 5310-01-310-9289 is the national stock number for a nut,self-locking,round in federal supply class 5310 (Nuts And Washers). It cross-references to 3 manufacturer part numbers from 3 CAGE codes, including The Boeing Company, Sps Technologies, LLC, Sps Technologies LLC; the primary is 82631-3212. The unit of issue is EA and the FLIS list price is $202.58.

The U.S. government has bought this item 1 time on record, 1 of them in the last 24 months, most recently on September 15, 2026 for $529 from Netkomp, Inc.. No seller has confirmed stock of it here in the last 60 days; watching the number is free and the first listing triggers an alert.

part numbers from 3 CAGEs

open solicitations, all agencies

government buy in 24 months

sellers with confirmed stock

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Cross-references

Part numbers filed against this stock number, with the manufacturer (CAGE) and the FLIS reference codes.

Part number	CAGE	Manufacturer	Reference	Variation
BACN10RF32	81205	The Boeing Company	3 · Design control (vendor)	2 · Fully interchangeable
82631-3212	56878	Sps Technologies, LLC	5 · Secondary reference	2 · Fully interchangeable
SL2822-32	97393	Sps Technologies LLC	5 · Secondary reference	2 · Fully interchangeable

Government demand

Nothing open right now. Last government buy Sep 15, 2026. Watch this NSN and we will email you when it is solicited.

What the government paid

Date	Vendor	Qty	Unit cost	Amount	Buyer	Reference
Sep 15, 2026	Netkomp, Inc. 1P4D9			$529	Dla	SPE4A126V1815 » Award/Basic Package View

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 1 buy on record in total.

Sellers with confirmed stock

No seller has confirmed stock on this NSN in the last 60 days. Watch it and we will email you when one does, or request a quote on 82631-3212.

Listings appear here only while the seller has confirmed them within 60 days. Sellers: list this part free.

DLA management data

FLIS unit price: $202.58
Unit of issue: EA
Acquisition advice: Z — Insurance item
Source of supply: SMS
Effective: Oct 1, 2025

Item characteristics

Thread Class: 3B
Thread Direction: RIGHT-HAND
Locking Feature: PREVAILING TORQUE WITH NONMETALLIC INSERT
Small End Diameter: INCHES MINIMUM 2.316 AND INCHES MAXIMUM 2.356
Drive Point Depth: INCHES NOMINAL 0.0125
Nut Diameter: INCHES MINIMUM 2.481 AND INCHES MAXIMUM 2.513
Nut Thickness: INCHES MINIMUM 0.543 AND INCHES MAXIMUM 0.573
Drive Point Width: INCHES MINIMUM 0.234 AND INCHES MAXIMUM 0.266
Undercut Thickness: INCHES NOMINAL 0.075
Drive Point Quantity: 4
Temp Rating: FAHRENHEIT MINIMUM -75.0 AND FAHRENHEIT MAXIMUM 250.0
Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF)
Thread Quantity Per Inch: 12
Hardness Rating: ROCKWELL C MINIMUM 36.0 AND ROCKWELL C MAXIMUM 38.0
Nominal Thread Size: INCHES 2.000
Countersink Angle: NUT DEGREES MINIMUM 90.0 AND DEGREES MAXIMUM 110.0
Material: LOCKING INSERT PLASTIC POLYAMIDE NYLON
Material: NUT STEEL COMP 4130
Material Document And Classification: NUT ASSN STD SINGLE MATERIAL RESPONSE A-S 6370 OR ASSN STD SINGLE MATERIAL RESPONSE A-S 6371
Surface Treatment: NUT CADMIUM AND CHROMATE
Surface Treatment Document And Classification: NUT FED SPEC SINGLE TREATMENT RESPONSE QQ--416,TY 2,CL 3

About this page

An NSN is 13 digits: the 4-digit Federal Supply Class and the 9-digit NIIN. Cross-references come from the federal logistics record; demand from DLA DIBBS, SAM.gov and FPDS; ADs from the Federal Register. Refreshed nightly. Market Pulse shows the whole market.