Home · NSN 01-201-2257

NSN 01-201-2257 — Nut,Self-Locking,Hexagon

NIIN 01-201-2257 · unit of issue EA · AAC V (terminal item, no replacement) · source of supply SMS

NSN 01-201-2257 is the national stock number for a nut,self-locking,hexagon. It cross-references to 6 manufacturer part numbers from 6 CAGE codes, including Military Standards Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M, Zf Industrieantriebe Witten Gmbh, Naval Sea Systems Command; the primary is 1-8UNC3B. The unit of issue is EA and the FLIS list price is $27.00.

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 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
MS17830-16C	96906	Military Standards Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M	2 · Item ident. reference	2 · Fully interchangeable
1-8UNC3B	D9182	Zf Industrieantriebe Witten Gmbh	C	1 · Not fully interchangeable
122-5277669 ITEM 54	53711	Naval Sea Systems Command	C	1 · Not fully interchangeable
122-5486620 PC15	43689	Huntington Ingalls Inc	C	1 · Not fully interchangeable
60-07-9335	96169	Electric Boat Corporation	C	1 · Not fully interchangeable
A07058.008.156	D9182	Zf Industrieantriebe Witten Gmbh	C	1 · Not fully interchangeable
A07058.008.156	01343	Anderson Greenwood Lp Dba Anderson Greenwood Crosby	C	1 · Not 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 1-8UNC3B.

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

DLA management data

FLIS unit price: $27.00
Unit of issue: EA
Acquisition advice: V — Terminal item, no replacement
Source of supply: SMS
Effective: Oct 1, 2026

Item characteristics

Thread Class: 3B
Thread Direction: RIGHT-HAND
Locking Feature: PREVAILING TORQUE WITH NONMETALLIC INSERT
Nut Height: INCHES MINIMUM 1.010 AND INCHES MAXIMUM 1.141
Width Across Flats: INCHES MINIMUM 1.427 AND INCHES MAXIMUM 1.440
Temp Rating: FAHRENHEIT MAXIMUM 250.0
Thread Series: UNIFIED NATIONAL COARSE (UNC)
Thread Quantity Per Inch: 8
Nominal Thread Size: INCHES 1.000
Countersink Angle: NUT DEGREES MINIMUM 88.0
Bearing Surface Type: CHAMFERED OR WASHER FACED
Bearing Surface Finish: MICROINCHES 125.0
Material: LOCKING INSERT PLASTIC POLYAMIDE NYLON
Material: NUT STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 303CU OR STEEL COMP 303F OR STEEL COMP 303MA OR STEEL COMP 303PB OR STEEL COMP 303S OR STEEL COMP 303SE OR STEE
Material Document And Classification: LOCKING INSERT ASSN STD SINGLE MATERIAL RESPONSE AST- D4066
Material Document And Classification: NUT FED STD ALL MATERIAL RESPONSES 66
Surface Treatment: OVERALL EXCEPT INSERT PASSIVATE
Surface Treatment Document And Classification: OVERALL EXCEPT INSERT FED SPEC SINGLE TREATMENT RESPONSE QQ--35

Related stock numbers

Other NSNs filed under the same part numbers.

01-455-7899 · Nut,Self-Locking,Hexagon

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.