Home · NSN 01-684-4344

NSN 01-684-4344 — Stud Assembly,Turnlock Fastener

NIIN 01-684-4344 · unit of issue EA · AAC J (not stocked, central procurement) · source of supply SMS

NSN 01-684-4344 is the national stock number for a stud assembly,turnlock fastener. It cross-references to 2 manufacturer part numbers from 2 CAGE codes, including The Boeing Company, Dupree, Inc; the primary is BACS21DX. The federal catalog ties it to the E-3 Sentry. The unit of issue is EA and the FLIS list price is $2.82.

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 2 CAGEs

open solicitations, all agencies

government buys in 24 months

sellers with confirmed stock

Know someone who should see this?

Cross-references

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

Part number	CAGE	Manufacturer	Reference	Variation
BACS21DX3A	81205	The Boeing Company	3 · Design control (vendor)	2 · Fully interchangeable
BACS21DX3A	66071	Dupree, Inc	5 · Secondary reference	2 · Fully interchangeable
BACS21DX	81205	The Boeing Company	D	9 · Reference only

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 BACS21DX.

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

DLA management data

FLIS unit price: $2.82
Unit of issue: EA
Acquisition advice: J — Not stocked, central procurement
Source of supply: SMS
Effective: Oct 1, 2025

Item characteristics

Diameter: INCHES MINIMUM 0.281
End Item Identification: E-3 DRAGON
Eyelet Outside Diameter: INCHES NOMINAL 0.375
Stud Diameter: INCHES MINIMUM 0.212 AND INCHES MAXIMUM 0.215
Eyelet Length: INCHES MINIMUM 0.135 AND INCHES MAXIMUM 0.145
Material Accommodated Thickness: INCHES NOMINAL 0.125
Material: HOUSING STEEL COMP 1010 OR STEEL COMP 1118 OR STEEL COMP 1008 OR STEEL COMP 1012
Material: LOCKSPRING STEEL
Material: STUD STEEL COMP 4037
Material Document And Classification: HOUSING ASSN STD SINGLE MATERIAL RESPONSE AST- A 109 OR ASSN STD SINGLE MATERIAL RESPONSE AST- A 108
Material Document And Classification: LOCKSPRING ASSN STD SINGLE MATERIAL RESPONSE AST- A 228
Material Document And Classification: STUD ASSN STD SINGLE MATERIAL RESPONSE A-S 6300
Proprietary Characteristics: PACS
Surface Treatment: HOUSING CADMIUM OR ZINC
Surface Treatment: LOCKSPRING CADMIUM OR ZINC
Surface Treatment: STUD CADMIUM OR ZINC
Surface Treatment Document And Classification: HOUSING ASSN STD SINGLE TREATMENT RESPONSE A-S-QQ--416, TYE II, CL 2 OR ASSN STD SINGLE TREATMENT RESPONSE AST- B 633 TYE II, CL SC2 OR SC3
Surface Treatment Document And Classification: LOCKSPRING ASSN STD SINGLE TREATMENT RESPONSE A-S-QQ--416, TYE I, CL 2 OR ASSN STD SINGLE TREATMENT RESPONSE AST- B 633, TYE I, CL SC2 OR SC3
Surface Treatment Document And Classification: STUD ASSN STD SINGLE TREATMENT RESPONSE A-S-QQ--416, TYE II, CL 2 OR ASSN STD SINGLE TREATMENT RESPONSE AST- B 633 TYE II, CL SC2 OR SC3

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.