Home · FSC 5305 Screws · NSN 5305-00-538-7073

NSN 5305-00-538-7073 — Screw,Close Tolerance

NIIN 00-538-7073 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

NSN 5305-00-538-7073 is the national stock number for a screw,close tolerance in federal supply class 5305 (Screws). It cross-references to 2 manufacturer part numbers from 13 CAGE codes, including The Boeing Company, Sps Technologies, LLC, Valley-Todeco, Inc.; the primary is BACB30LU3-8. The unit of issue is EA and the FLIS list price is $1.83.

The U.S. government has bought this item 2 times on record, 2 of them in the last 24 months, most recently on September 17, 2026 for $233 from Lockheed Martin Corporation. 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 13 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
BACB30LU3-8	81205	The Boeing Company	3 · Design control (vendor)	2 · Fully interchangeable
BACB30LU3-8	06725	Sps Technologies, LLC	3 · Design control (vendor)	2 · Fully interchangeable
BACB30LU3-8	06710	Valley-Todeco, Inc.	3 · Design control (vendor)	2 · Fully interchangeable
BACB30LU3-8	06950	Howmet Global Fastening Systems Inc	3 · Design control (vendor)	2 · Fully interchangeable
BACB30LU3-8	17446	Huck International, Inc	3 · Design control (vendor)	2 · Fully interchangeable
BACB30LU3-8	80539	Sps Technologies, LLC Dba Aerospace Fasteners Group Div Aerospace - Santa Ana	3 · Design control (vendor)	2 · Fully interchangeable
BACB30LU3-8	17943	Federal Manufacturing Corp	3 · Design control (vendor)	2 · Fully interchangeable
BACB30LU3-8	92215	Howmet Global Fastening Systems Inc Div Torrance Operations	5 · Secondary reference	9 · Reference only
BACB30LU3-8	56878	Sps Technologies, LLC	5 · Secondary reference	9 · Reference only
BACB30LU3-8	57928	Sonic Industries, Inc.	5 · Secondary reference	9 · Reference only
BACB30LU3-8	1RC86	Howmet Global Fastening Systems Inc	5 · Secondary reference	2 · Fully interchangeable
BACB30LU3-8	97928	Huck Intl Inc	5 · Secondary reference	9 · Reference only
BACB30U3-8	27624	Sps Technologies LLC	5 · Secondary reference	9 · Reference only

Government demand

Nothing open right now. Last government buy Sep 17, 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 17, 2026	Lockheed Martin Corporation 16331			$233	Dla	SPE4AX25D5000
Aug 18, 2026	Lockheed Martin Corporation 16331			$402	Dla	SPE4AX25D5000

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 2 buys 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 BACB30LU3-8.

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

DLA management data

FLIS unit price: $1.83
Unit of issue: EA
Acquisition advice: Z — Insurance item
Source of supply: SMS
Effective: Oct 1, 2025

Item characteristics

Thread Class: 3A
Thread Direction: RIGHT-HAND
Thread Length: INCHES MINIMUM 0.320 AND INCHES MAXIMUM 0.370
Fastener Length: INCHES MINIMUM 0.830 AND INCHES MAXIMUM 0.860
Head Diameter: INCHES MINIMUM 0.337 AND INCHES MAXIMUM 0.383
Grip Diameter: INCHES MINIMUM 0.1885 AND INCHES MAXIMUM 0.1895
Nominal Thread Diameter: INCHES 0.190
Grip Length: INCHES MINIMUM 0.490 AND INCHES MAXIMUM 0.510
Thread Quantity Per Inch: 32
Countersink Angle: DEGREES MINIMUM 99.0 AND DEGREES MAXIMUM 101.0
Surface Finish: GRIP MICROINCHES 32.0
Surface Finish: THREADS MICROINCHES 32.0
Material: OVERALL STEEL COMP E4340 OR STEEL COMP 8740
Material Document And Classification: OVERALL MIL SPEC 1ST MATERIAL RESPONSE -IL-S-5000 OR MIL SPEC 2ND MATERIAL RESPONSE -IL-S-6049RJGCA-S 6322
Surface Treatment: OVERALL CADMIUM AND CHROMATE
Surface Treatment Document And Classification: OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--416,TY 2,CL 3
Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF)

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.