Home · NSN 00-821-1934

NSN 00-821-1934 — Nut,Self-Locking,Extended Washer

NIIN 00-821-1934 · unit of issue EA · AAC J (not stocked, central procurement) · source of supply SMS

NSN 00-821-1934 is the national stock number for a nut,self-locking,extended washer. It cross-references to 3 manufacturer part numbers from 3 CAGE codes, including The Boeing Company, Sps Technologies, LLC; the primary is BACN10CT4. The unit of issue is EA and the FLIS list price is $1.96.

No government purchase of this stock number is on our record yet. 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 buys 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
BACN10OCT4	81205	The Boeing Company	3 · Design control (vendor)	2 · Fully interchangeable
BACN10CT4	77272	The Boeing Company	5 · Secondary reference	2 · Fully interchangeable
EWN22-4	56878	Sps Technologies, LLC	5 · Secondary reference	2 · Fully interchangeable

Government demand

Nothing open right now. Watch this NSN and we will email you when it is solicited.

What the government paid

No government purchase on record for this NSN.

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices.

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 BACN10CT4.

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

DLA management data

FLIS unit price: $1.96
Unit of issue: EA
Acquisition advice: J — Not stocked, central procurement
Source of supply: SMS
Effective: Oct 1, 2025

Item characteristics

Thread Class: 3B
Thread Direction: RIGHT-HAND
Locking Feature: PREVAILING TORQUE ALL METAL DESIGN
Washer Outside Diameter: INCHES MINIMUM 0.471 AND INCHES MAXIMUM 0.481
Lubrication: SOLUBLE LUBRICANT
Overall Height: INCHES MINIMUM 0.339 AND INCHES MAXIMUM 0.349
Washer Thickness: INCHES MINIMUM 0.075 AND INCHES MAXIMUM 0.090
Width Across Flats: INCHES MINIMUM 0.367 AND INCHES MAXIMUM 0.376
Temp Rating: FAHRENHEIT NOMINAL 450.0
Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF)
Thread Quantity Per Inch: 28
Nominal Thread Size: INCHES 0.250
Countersink Angle: NUT DEGREES NOMINAL 90.0
Material: OVERALL STEEL COMP 8740 OR STEEL COMP 8630
Material Document And Classification: OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S6322 OR ASSN STD SINGLE MATERIAL RESPONSE A-S6280
Surface Treatment: OVERALL CADMIUM
Surface Treatment Document And Classification: OVERALL 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.