Home · NSN 00-141-4507

NSN 00-141-4507 — Bolt,Close Tolerance

NIIN 00-141-4507 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

NSN 00-141-4507 is the national stock number for a bolt,close tolerance. It cross-references to 3 manufacturer part numbers from 2 CAGE codes, including Aeronautical Standards Group Dept Of Navy And Air Force, Military Specifications Promulgated By Military Departments/Agencies Under Authority Of Defense Standardization Manual 4120 3-M; the primary is AN173-21A. The unit of issue is EA and the FLIS list price is $9.37.

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
AN173H21A	88044	Aeronautical Standards Group Dept Of Navy And Air Force	2 · Item ident. reference	2 · Fully interchangeable
AN173-21A	88044	Aeronautical Standards Group Dept Of Navy And Air Force	E	8
B6812	81349	Military Specifications Promulgated By Military Departments/Agencies Under Authority Of Defense Standardization Manual 4120 3-M	E	8

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 AN173-21A.

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

DLA management data

FLIS unit price: $9.37
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 0.374 AND INCHES MAXIMUM 0.453
Fastener Length: INCHES MINIMUM 2.140 AND INCHES MAXIMUM 2.187
Head Height: INCHES MINIMUM 0.109 AND INCHES MAXIMUM 0.141
Width Between Flats: INCHES MINIMUM 0.365 AND INCHES MAXIMUM 0.377
Hole Diameter: INCHES NOMINAL 0.046
Grip Diameter: INCHES MINIMUM 0.1889 AND INCHES MAXIMUM 0.1894
Shank Unthreaded Hole Diameter: FIRST HOLE INCHES MINIMUM 0.070 AND INCHES MAXIMUM 0.080
Nominal Thread Diameter: INCHES 0.190
Grip Length: INCHES MINIMUM 1.734 AND INCHES MAXIMUM 1.766
Hole Quantity: 1
Hole Type: DRILLED
Thread Quantity Per Inch: 32
Minimum Tensile Strength: POUNDS PER SQUARE INCH 125000
Hardness Rating: OVERALL ROCKWELL C MINIMUM 26.0 AND ROCKWELL C MAXIMUM 32.0
Distance From Head Largest Bearing Surface To Shank Hole Center: FIRST HOLE INCHES MINIMUM 2.000 AND INCHES MAXIMUM 2.032
Surface Finish: BEARING SURFACE OF HEAD MICROINCHES 63.0
Surface Finish: GRIP MICROINCHES 63.0
Material: OVERALL STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4130 OR STEEL COMP 4037
Surface Treatment: OVERALL CADMIUM AND CHROMATE
Surface Treatment Document And Classification: OVERALL FED SPEC ALL TREATMENT RESPONSES QQ--416,TY 2,CL 3
Thread Series Designator: UNF

Related stock numbers

Other NSNs filed under the same part numbers.

00-051-2338 · Bolt,Machine
00-051-2343 · Bolt,Machine
00-051-2344 · Bolt,Machine
00-051-2349 · Bolt,Machine
00-141-4519 · Bolt,Close Tolerance
00-141-4712 · Bolt,Machine
00-141-4716 · Bolt,Machine
00-144-3686 · Bolt,Machine

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.