Home · NSN 01-277-0449

NSN 01-277-0449 — Screw,Cap,Hexagon Head

NIIN 01-277-0449 · unit of issue EA · AAC J (not stocked, central procurement) · source of supply SMS

NSN 01-277-0449 is the national stock number for a screw,cap,hexagon head. It cross-references to 2 manufacturer part numbers from 2 CAGE codes, including American National Standards Institute Incorporated, Military Standards Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M; the primary is B1821BH113C325N. The unit of issue is EA and the FLIS list price is $2.56.

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
B1821BH113C325N	80204	American National Standards Institute Incorporated	3 · Design control (vendor)	2 · Fully interchangeable
MS90728-255	96906	Military Standards Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M	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 B1821BH113C325N.

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

DLA management data

FLIS unit price: $2.56
Unit of issue: EA
Acquisition advice: J — Not stocked, central procurement
Source of supply: SMS
Effective: Oct 1, 2025

Item characteristics

Thread Class: 2A
Thread Direction: RIGHT-HAND
Thread Length: INCHES MINIMUM 2.750 AND INCHES MAXIMUM 3.103
Fastener Length: INCHES MINIMUM 3.062 AND INCHES MAXIMUM 3.250
Head Height: INCHES MINIMUM 0.658 AND INCHES MAXIMUM 0.718
Width Between Flats: INCHES MINIMUM 1.631 AND INCHES MAXIMUM 1.687
Nominal Thread Diameter: INCHES 1.125
Thread Quantity Per Inch: 7
Minimum Tensile Strength: POUNDS PER SQUARE INCH 150000
Material: OVERALL STEEL
Material Document And Classification: OVERALL ASSN STD SINGLE MATERIAL RESPONSE SAE GR 8 J429
Surface Treatment: OVERALL ZINC AND CHROMATE
Surface Treatment Document And Classification: OVERALL ASSN STD SINGLE TREATMENT RESPONSE AST- B633 TY 2 SC 3
Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)

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.