Home · NSN 01-311-6244

NSN 01-311-6244 — Screw,Cap,Hexagon Head

NIIN 01-311-6244 · unit of issue EA · AAC J (not stocked, central procurement) · source of supply SMS

NSN 01-311-6244 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, Federal Specifications Promulgated By General Services Administration Washington Dc; the primary is FF-S-85. The unit of issue is EA and the FLIS list price is $12.32.

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.

2

part numbers from 2 CAGEs

0

open solicitations, all agencies

0

government buys in 24 months

0

sellers with confirmed stock

Watch NSN 01-311-6244: an email the morning the government solicits or buys it, or an AD names it. Free.
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Cross-references

Part numbers filed against this stock number, with the manufacturer (CAGE) and the FLIS reference codes.

Part numberCAGEManufacturerReferenceVariation
MS51105-30996906Military Standards Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M2 · Item ident. reference2 · Fully interchangeable
FF-S-8581348Federal Specifications Promulgated By General Services Administration Washington Dc41 · 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 FF-S-85.

Request FF-S-85

No account needed. Goes to the sellers who carry this number or its family.

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

DLA management data

FLIS unit price
$12.32
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 0.750 AND INCHES MAXIMUM 0.938
Fastener Length
INCHES MINIMUM 1.188 AND INCHES MAXIMUM 1.250
Head Height
INCHES MINIMUM 0.150 AND INCHES MAXIMUM 0.163
Width Between Flats
INCHES MINIMUM 0.4280 AND INCHES MAXIMUM 0.4375
Shank Unthreaded Hole Diameter
FIRST HOLE INCHES MINIMUM 0.074 AND INCHES MAXIMUM 0.082
Nominal Thread Diameter
INCHES 0.250
Thread Quantity Per Inch
20
Minimum Tensile Strength
POUNDS PER SQUARE INCH 120000
Hardness Rating
OVERALL ROCKWELL C MINIMUM 25.0 AND ROCKWELL C MAXIMUM 34.0
Distance From Head Largest Bearing Surface To Shank Hole Center
FIRST HOLE INCHES MINIMUM 1.069 AND INCHES MAXIMUM 1.151
Material
OVERALL STEEL
Material Document And Classification
OVERALL ASSN STD SINGLE MATERIAL RESPONSE SAE GRADE 5
Surface Treatment
OVERALL CADMIUM AND CHROMATE
Surface Treatment Document And Classification
OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--416,TY 2 CL 3
Thread Series Designator
UNIFIED NATIONAL COARSE (UNC)
Nondefinitive Spec/Std Data
TYPE 2 AND STYLE 10

Related stock numbers

Other NSNs filed under the same part numbers.

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.

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