Home · NSN 01-313-3977

NSN 01-313-3977 — Nut,Self-Locking,Plate

NIIN 01-313-3977 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

NSN 01-313-3977 is the national stock number for a nut,self-locking,plate. It cross-references to 3 manufacturer part numbers from 4 CAGE codes, including National Aerospace Standards Committee Aerospace Industries Association Of America Inc Not For Rfq Or Solicitation Use, Military Standards Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M, Leonardo Spa Helicopters Division - Production Site; the primary is MS21076L4N. The federal catalog ties it to the MQ-4. The unit of issue is EA and the FLIS list price is $3.06.

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 4 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
MS21076L4N	80205	National Aerospace Standards Committee Aerospace Industries Association Of America Inc Not For Rfq Or Solicitation Use	3 · Design control (vendor)	2 · Fully interchangeable
MS21076L4N	96906	Military Standards Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M	5 · Secondary reference	9 · Reference only
MS21076L4N	A0126	Leonardo Spa Helicopters Division - Production Site	5 · Secondary reference	2 · Fully interchangeable
PL405522-01 FN 3	63631	Bae Systems Controls Inc.	C	1 · Not fully interchangeable
PL405545-01 FN 3	63631	Bae Systems Controls Inc.	C	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 MS21076L4N.

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

DLA management data

FLIS unit price: $3.06
Unit of issue: EA
Acquisition advice: Z — Insurance item
Source of supply: SMS
Effective: Oct 1, 2026

Item characteristics

Thread Class: 3B
Thread Direction: RIGHT-HAND
Locking Feature: PREVAILING TORQUE ALL METAL DESIGN
Lubrication: DRY FILM LUBRICANT OR SOLUBLE LUBRICANT
Mounting Hole Diameter: INCHES MINIMUM 0.098 AND INCHES MAXIMUM 0.103
Nut Length: INCHES MAXIMUM 0.801
Nut Height: INCHES MAXIMUM 0.281
Plate Thickness: INCHES MINIMUM 0.027 AND INCHES MAXIMUM 0.090
Plate Width: INCHES MINIMUM 0.350 AND INCHES MAXIMUM 0.500
Nut Mounting Provision: STRAIGHT HOLES
Distance From Aperture Center To Mounting Hole Center: INCHES MINIMUM 0.276 AND INCHES MAXIMUM 0.286
Center To Center Distance Between Mounting Holes Along Length: INCHES MINIMUM 0.560 AND INCHES MAXIMUM 0.564
End Item Identification: MQ-4C TRITON
Temp Rating: FAHRENHEIT MAXIMUM 450.0
Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF)
Features Provided: FLOATING NUT
Thread Quantity Per Inch: 28
Hardness Rating: ROCKWELL C MAXIMUM 49.0
Nominal Thread Size: INCHES 0.250
Criticality Code Justification: AGAV
Material: OVERALL IRON ALLOY 660
Material Document And Classification: OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S 5525 OR ASSN STD SINGLE MATERIAL RESPONSE A-S 5732 OR ASSN STD SINGLE MATERIAL RESPONSE A-S 5737
Surface Treatment: OVERALL PASSIVATE
Surface Treatment Document And Classification: OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--35

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.