Home · NSN 01-210-9429

NSN 01-210-9429 — Screw,Cap,Socket Head

NIIN 01-210-9429 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

NSN 01-210-9429 is the national stock number for a screw,cap,socket head. It cross-references to 3 manufacturer part numbers from 6 CAGE codes, including National Aerospace Standards Committee Aerospace Industries Association Of America Inc Not For Rfq Or Solicitation Use, Allen Mfg Co Sub Of Chicago Pneumatic Tool Co, H-K Connecticut Holding Company; the primary is 0645-0428-21UDK. The unit of issue is EA and the FLIS list price is $2.41.

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 6 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
NAS1351-4-21	80205	National Aerospace Standards Committee Aerospace Industries Association Of America Inc Not For Rfq Or Solicitation Use	3 · Design control (vendor)	2 · Fully interchangeable
0645-0428-21UDK	70276	Allen Mfg Co Sub Of Chicago Pneumatic Tool Co	5 · Secondary reference	9 · Reference only
0645-0428-21UDK	74445	H-K Connecticut Holding Company	5 · Secondary reference	2 · Fully interchangeable
0645-0428-21UDK	56878	Sps Technologies, LLC	5 · Secondary reference	2 · Fully interchangeable
0645-0428-21UDK	82896	Safety Socket LLC	5 · Secondary reference	2 · Fully interchangeable
0645-0428-21UDK	99167	Hamilton Sundstrand Corporation	5 · Secondary reference	2 · Fully interchangeable
57999-6	99167	Hamilton Sundstrand Corporation	5 · Secondary 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 0645-0428-21UDK.

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

DLA management data

FLIS unit price: $2.41
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 1.000
Fastener Length: INCHES MINIMUM 1.296 AND INCHES MAXIMUM 1.343
Head Diameter: INCHES MINIMUM 0.365 AND INCHES MAXIMUM 0.375
Head Height: INCHES MINIMUM 0.244 AND INCHES MAXIMUM 0.250
Nominal Thread Diameter: INCHES 0.250
Width Across Flats: INCHES MINIMUM 0.1875 AND INCHES MAXIMUM 0.1900
Thread Quantity Per Inch: 28
Minimum Tensile Strength: POUNDS PER SQUARE INCH 160000
Hardness Rating: OVERALL ROCKWELL C MINIMUM 36.0 AND ROCKWELL C MAXIMUM 43.0
Special Features: COLOR BLACK,HEAD DOUBLE KNURLED
Material: OVERALL STEEL
Surface Treatment: OVERALL OXIDE
Surface Treatment Document And Classification: OVERALL MIL SPEC SINGLE TREATMENT RESPONSE -IL-C-13924
Thread Series Designator: UNF
Specification/Standard Data: PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD 80205-NAS1351

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.