Home · NSN 01-348-2685

NSN 01-348-2685 — Screw,Close Tolerance

NIIN 01-348-2685 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

NSN 01-348-2685 is the national stock number for a screw,close tolerance. It cross-references to 1 manufacturer part number from 1 CAGE code, including Aeronautical Standards Group Dept Of Navy And Air Force; the primary is AN178C35A. The unit of issue is EA and the FLIS list price is $74.86.

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 number from 1 CAGE

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government buys in 24 months

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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
AN178C35A	88044	Aeronautical Standards Group Dept Of Navy And Air Force	2 · Item ident. 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 AN178C35A.

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

DLA management data

FLIS unit price: $74.86
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 NOMINAL 0.781
Fastener Length: INCHES MINIMUM 3.703 AND INCHES MAXIMUM 3.749
Head Height: INCHES MINIMUM 0.265 AND INCHES MAXIMUM 0.297
Width Between Flats: INCHES MINIMUM 0.740 AND INCHES MAXIMUM 0.752
Grip Diameter: INCHES MINIMUM 0.4986 AND INCHES MAXIMUM 0.4991
Nominal Thread Diameter: INCHES 0.500
Grip Length: INCHES MINIMUM 2.922 AND INCHES MAXIMUM 2.952
Thread Quantity Per Inch: 20
Minimum Tensile Strength: POUNDS PER SQUARE INCH 125000
Hardness Rating: OVERALL ROCKWELL C MINIMUM 26.0 AND ROCKWELL C MAXIMUM 32.0
Surface Finish: GRIP MICROINCHES 32.0
Surface Finish: BEARING SURFACE OF HEAD MICROINCHES 32.0
Material: OVERALL STEEL COMP 431
Material Document And Classification: OVERALL MIL SPEC SINGLE MATERIAL RESPONSE -IL-S-18732
Surface Treatment: OVERALL PASSIVATE
Thread Series Designator: UNF

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.