Home · NSN 01-667-1857

NSN 01-667-1857 — Screw,Cap,Socket Head

NIIN 01-667-1857 · unit of issue EA · AAC V (terminal item, no replacement) · source of supply NRP

NSN 01-667-1857 is the national stock number for a screw,cap,socket head. It cross-references to 2 manufacturer part numbers from 2 CAGE codes, including National Aerospace Standards Committee Aerospace Industries Association Of America Inc Not For Rfq Or Solicitation Use, Heroux-Devtek Inc.; the primary is NAS1351. The unit of issue is EA and the FLIS list price is $9.00.

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

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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
NAS1351	80205	National Aerospace Standards Committee Aerospace Industries Association Of America Inc Not For Rfq Or Solicitation Use	3 · Design control (vendor)	1 · Not fully interchangeable
NAS1351N08H6	80205	National Aerospace Standards Committee Aerospace Industries Association Of America Inc Not For Rfq Or Solicitation Use	3 · Design control (vendor)	2 · Fully interchangeable
NAS1351N08H6	36164	Heroux-Devtek Inc.	5 · Secondary reference	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 NAS1351.

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

DLA management data

FLIS unit price: $9.00
Unit of issue: EA
Acquisition advice: V — Terminal item, no replacement
Source of supply: NRP
Effective: Jun 1, 2026

Item characteristics

Thread Class: 3A
Thread Direction: RIGHT-HAND
Thread Length: INCHES MINIMUM 0.289 AND INCHES MAXIMUM 0.375
Fastener Length: INCHES MINIMUM 0.345 AND INCHES MAXIMUM 0.375
Head Diameter: INCHES MINIMUM 0.262 AND INCHES MAXIMUM 0.270
Head Height: INCHES MINIMUM 0.159 AND INCHES MAXIMUM 0.164
Hole Diameter: INCHES MINIMUM 0.044 AND INCHES MAXIMUM 0.050
Nominal Thread Diameter: INCHES 0.164
Width Across Flats: INCHES MINIMUM 0.141 AND INCHES MAXIMUM 0.143
Hole Quantity: 6
Hole Type: DRILLED
Thread Quantity Per Inch: 36
Hardness Rating: OVERALL ROCKWELL C MINIMUM 33.0 AND ROCKWELL C MAXIMUM 42.0
Part Name Assigned By Controlling Agency: BOLT B056
Material: OVERALL IRON ALLOY 660
Material Document And Classification: OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S5731 OR ASSN STD SINGLE MATERIAL RESPONSE A-S5737
Surface Treatment: OVERALL PASSIVATE
Thread Series Designator: UNRF
Specification/Standard Data: PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD 80205-NAS51351

Related stock numbers

Other NSNs filed under the same part numbers.

01-381-2091 · Screw,Cap,Socket Head
01-516-7945 · Screw,Panel Fastener
01-603-1652 · Screw,Cap,Socket Head
01-603-1654 · Screw,Cap,Socket Head
01-611-1170 · Screw,Cap,Socket Head
01-623-0133 · Screw,Cap,Socket Head
01-671-0016 · Screw,Cap,Socket Head
01-671-1052 · Screw,Cap,Socket Head

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.