Home · NSN 01-428-3687

NSN 01-428-3687 — Screw,Cap,Hexagon Head

NIIN 01-428-3687 · unit of issue EA · AAC V (terminal item, no replacement) · source of supply SMS

NSN 01-428-3687 is the national stock number for a screw,cap,hexagon head. It cross-references to 2 manufacturer part numbers from 2 CAGE codes, including Military Standards Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M, Long-Lok LLC; the primary is LP90728-170. The unit of issue is EA and the FLIS list price is $19.07.

No government purchase of this stock number is on our record yet. No seller has confirmed stock of it here in the last 30 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
MS90728-170L	96906	Military Standards Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M	2 · Item ident. reference	2 · Fully interchangeable
LP90728-170	16941	Long-Lok LLC	5 · Secondary reference	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 LP90728-170.

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

DLA management data

FLIS unit price: $19.07
Unit of issue: EA
Acquisition advice: V — Terminal item, no replacement
Source of supply: SMS
Effective: Oct 1, 2026

Item characteristics

Thread Class: 2A
Thread Direction: RIGHT-HAND
Thread Length: INCHES MINIMUM 1.500 AND INCHES MAXIMUM 1.727
Fastener Length: INCHES MINIMUM 3.406 AND INCHES MAXIMUM 3.500
Head Height: INCHES MINIMUM 0.378 AND INCHES MAXIMUM 0.403
Width Between Flats: INCHES MINIMUM 0.922 AND INCHES MAXIMUM 0.938
Locking Feature: THREADS STRIP
Nominal Thread Diameter: INCHES 0.625
Thread Quantity Per Inch: 11
Minimum Tensile Strength: POUNDS PER SQUARE INCH 150000
Hardness Rating: OVERALL ROCKWELL C MINIMUM 32.0 AND ROCKWELL C MAXIMUM 38.0
Material: OVERALL STEEL
Material Document And Classification: OVERALL ASSN STD SINGLE MATERIAL RESPONSE SAEJ429, GRADE 8
Surface Treatment: OVERALL ZINC AND CHROMATE
Surface Treatment Document And Classification: OVERALL ASSN STD SINGLE TREATMENT RESPONSE AST-B633, TY 2, SC3
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.