Home · NSN 01-027-6402

NSN 01-027-6402 — Screw,Close Tolerance

NIIN 01-027-6402 · unit of issue EA · AAC J (not stocked, central procurement) · source of supply SMS

NSN 01-027-6402 is the national stock number for a screw,close tolerance. It cross-references to 2 manufacturer part numbers from 2 CAGE codes, including Howmet Global Fastening Systems Inc., Avibank Mfg., Inc.; the primary is AS126-4-53. The unit of issue is EA and the FLIS list price is $1,642.36.

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
CA2654-4-53	29372	Howmet Global Fastening Systems Inc.	3 · Design control (vendor)	2 · Fully interchangeable
AS126-4-53	84256	Avibank Mfg., Inc.	5 · Secondary reference	2 · 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 AS126-4-53.

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

DLA management data

FLIS unit price: $1,642.36
Unit of issue: EA
Acquisition advice: J — Not stocked, central procurement
Source of supply: SMS
Effective: Oct 1, 2025

Item characteristics

Thread Class: 3A
Thread Direction: RIGHT-HAND
Thread Length: INCHES MINIMUM 0.278 AND INCHES MAXIMUM 0.329
Fastener Length: INCHES MINIMUM 3.731 AND INCHES MAXIMUM 3.751
Head Diameter: INCHES MINIMUM 0.477 AND INCHES MAXIMUM 0.492
Head Height: INCHES MINIMUM 0.126 AND INCHES MAXIMUM 0.141
Grip Diameter: INCHES MINIMUM 0.2487 AND INCHES MAXIMUM 0.2492
Nominal Thread Diameter: INCHES 0.250
Grip Length: INCHES MINIMUM 3.312 AND INCHES MAXIMUM 3.328
Thread Quantity Per Inch: 28
Minimum Tensile Strength: POUNDS PER SQUARE INCH 160000
Surface Finish: BEARING SURFACE OF HEAD MICROINCHES 63.0
Surface Finish: GRIP MICROINCHES 63.0
Special Features: RETAINING BALLS IN SHANK 180 DEGREES APART
Material: OVERALL IRON ALLOY 660
Material Document And Classification: OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S 5732
Surface Treatment: OVERALL PASSIVATE
Surface Treatment Document And Classification: OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--35
Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF)

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.