Home · NSN 01-311-3446

NSN 01-311-3446 — Bolt,Close Tolerance

NIIN 01-311-3446 · unit of issue EA · AAC V (terminal item, no replacement) · source of supply SMS

NSN 01-311-3446 is the national stock number for a bolt,close tolerance. It cross-references to 2 manufacturer part numbers from 2 CAGE codes, including Defense Logistics Agency Dba Defense Supply Center Philadelphia, Warner Robins Air Logistics Center; the primary is 02555. The unit of issue is EA and the FLIS list price is $53.83.

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
02555	14153	Defense Logistics Agency Dba Defense Supply Center Philadelphia	3 · Design control (vendor)	1 · Not fully interchangeable
8936426-01	14153	Defense Logistics Agency Dba Defense Supply Center Philadelphia	3 · Design control (vendor)	2 · Fully interchangeable
8936426-01	98752	Warner Robins Air Logistics Center	5 · Secondary reference	9 · Reference only

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 02555.

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

DLA management data

FLIS unit price: $53.83
Unit of issue: EA
Acquisition advice: V — Terminal item, no replacement
Source of supply: SMS
Effective: Oct 1, 2026

Item characteristics

Thread Class: 3A
Thread Direction: RIGHT-HAND
Thread Length: INCHES NOMINAL 0.468
Fastener Length: INCHES MINIMUM 1.640 AND INCHES MAXIMUM 1.687
Head Height: INCHES MINIMUM 0.140 AND INCHES MAXIMUM 0.172
Width Between Flats: INCHES MINIMUM 0.428 AND INCHES MAXIMUM 0.440
Grip Diameter: INCHES MINIMUM 0.2487 AND INCHES MAXIMUM 0.2492
Shank Unthreaded Hole Diameter: FIRST HOLE INCHES MINIMUM 0.076 AND INCHES MAXIMUM 0.086
Nominal Thread Diameter: INCHES 0.250
Grip Length: INCHES MINIMUM 1.172 AND INCHES MAXIMUM 1.204
Thread Quantity Per Inch: 28
Hardness Rating: OVERALL ROCKWELL C MINIMUM 26.0 AND ROCKWELL C MAXIMUM 32.0
Criticality Code Justification: FEAT
Distance From Head Largest Bearing Surface To Shank Hole Center: FIRST HOLE INCHES MINIMUM 1.484 AND INCHES MAXIMUM 1.516
Surface Finish: BEARING SURFACE OF HEAD MICROINCHES 63.0
Surface Finish: GRIP MICROINCHES 63.0
Special Features: SAFETY CRITICAL ITEM. APPLY ONE COAT OF MIL-P-23377, TY 1, CL 1 OR 3 AND TWO TOP COATS OF MIL-C-46168, COLOR CODE 33538 PER FED-STD-595 TO TOP OF HEAD
Material: OVERALL STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4130
Material Document And Classification: OVERALL MIL SPEC 1ST MATERIAL RESPONSE -IL-S-5626 OR MIL SPEC 2ND MATERIAL RESPONSE -IL-S-6049 OR MIL SPEC 3RD MATERIAL RESPONSE -IL-S-6050 OR MIL SPEC 4TH MATERIAL RESPONSE -IL-S-6098 OR MIL
Surface Treatment: OVERALL CADMIUM AND CHROMATE
Surface Treatment Document And Classification: OVERALL FED SPEC ALL TREATMENT RESPONSES QQ--416 TY 2 CL 3
Thread Series Designator: UNF

Related stock numbers

Other NSNs filed under the same part numbers.

01-331-1567 · Adapter,Oxygen,Nut-Nipple Inlet

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.