Home · NSN 00-144-4051

NSN 00-144-4051 — Bolt,Close Tolerance

NIIN 00-144-4051 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

NSN 00-144-4051 is the national stock number for a bolt,close tolerance. It cross-references to 5 manufacturer part numbers from 3 CAGE codes, including Department Of The Air Force, Aeronautical Standards Group Dept Of Navy And Air Force, Military Specifications Promulgated By Military Departments/Agencies Under Authority Of Defense Standardization Manual 4120 3-M; the primary is 85H22. The unit of issue is EA and the FLIS list price is $4.56.

No government purchase of this stock number is on our record yet. 1 seller on PartsAndPlanes lists it with confirmed stock.

5

part numbers from 3 CAGEs

0

open solicitations, all agencies

0

government buys in 24 months

1

seller with confirmed stock

Watch NSN 00-144-4051: 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
85H2280049Department Of The Air Force3 · Design control (vendor)9 · Reference only
AN175H22A88044Aeronautical Standards Group Dept Of Navy And Air Force41 · Not fully interchangeable
B681281349Military Specifications Promulgated By Military Departments/Agencies Under Authority Of Defense Standardization Manual 4120 3-M41 · Not fully interchangeable
B6812A81349Military Specifications Promulgated By Military Departments/Agencies Under Authority Of Defense Standardization Manual 4120 3-M41 · Not fully interchangeable
AN175-22A88044Aeronautical Standards Group Dept Of Navy And Air ForceE8

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

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

DLA management data

FLIS unit price
$4.56
Unit of issue
EA
Acquisition advice
Z — Insurance item
Source of supply
SMS
Effective
Oct 1, 2026

Item characteristics

Thread Class
3A
Thread Direction
RIGHT-HAND
Thread Length
INCHES MINIMUM 0.532
Fastener Length
INCHES NOMINAL 2.344
Head Height
INCHES MINIMUM 0.172 AND INCHES MAXIMUM 0.204
Width Between Flats
INCHES MINIMUM 0.490 AND INCHES MAXIMUM 0.502
Hole Diameter
INCHES NOMINAL 0.070
Grip Diameter
INCHES MINIMUM 0.3112 AND INCHES MAXIMUM 0.3117
Nominal Thread Diameter
INCHES 0.312
Grip Length
INCHES NOMINAL 1.812
Hole Quantity
1
Hole Type
DRILLED
Thread Quantity Per Inch
24
Minimum Tensile Strength
POUNDS PER SQUARE INCH 125000
Hardness Rating
OVERALL ROCKWELL C MINIMUM 26.0 AND ROCKWELL C MAXIMUM 32.0
Surface Finish
BEARING SURFACE OF HEAD MICROINCHES 63.0
Surface Finish
GRIP MICROINCHES 63.0
Material
OVERALL STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4140 OR STEEL COMP 4130 OR STEEL COMP 4037
Material Document And Classification
OVERALL MIL SPEC 1ST MATERIAL RESPONSE -IL-S-6049 OR MIL SPEC 2ND MATERIAL RESPONSE -IL-S-6050 OR MIL SPEC 3RD MATERIAL RESPONSE -IL-S-6098 OR MIL SPEC 4TH MATERIAL RESPONSE -IL-S-5626 OR MIL
Surface Treatment
OVERALL CADMIUM AND CHROMATE
Surface Treatment Document And Classification
OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--416,TYE 2,CLASS 3
Thread Series Designator
UNF

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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