Home · FSC 5307 Studs · NSN 5307-01-114-5255

NSN 5307-01-114-5255 — Stud,Locked In

NIIN 01-114-5255 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

NSN 5307-01-114-5255 is the national stock number for a stud,locked in in federal supply class 5307 (Studs). It cross-references to 1 manufacturer part number from 3 CAGE codes, including Society Of Automotive Engineers Inc, Sae International, Military Standards Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M; the primary is MS51989-105D16. The unit of issue is EA and the FLIS list price is $31.00.

The U.S. government has bought this item 7 times on record, most recently on October 21, 2021 at $22.22 each from Alamo Aircraft, Ltd.. 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 number from 3 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
MS51989-105D16	81343	Society Of Automotive Engineers Inc	3 · Design control (vendor)	9 · Reference only
MS51989-105D16	0U583	Sae International	3 · Design control (vendor)	2 · Fully interchangeable
MS51989-105D16	96906	Military Standards Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M	5 · Secondary reference	9 · Reference only

Government demand

Nothing open right now. Last government buy Oct 21, 2021. Watch this NSN and we will email you when it is solicited.

What the government paid

Date	Vendor	Qty	Unit cost	Buyer	Reference
Oct 21, 2021	Alamo Aircraft, Ltd. 55345	182	$22.22	Dla	SPE4A622P1634
Apr 13, 2009	Alamo Aircraft, Ltd. 55345	1,235	$16.98	Dla	SPM5AZ07D48240075
Feb 19, 2009	Alamo Aircraft, Ltd. 55345	73	$15.11	Dla	SPM5AZ07D48240071
Jul 31, 2007	Quality Socket Screw Manufacturing Corp 5N116	205	$15.50	Dla	SPM5A607V0693
Dec 20, 2006	Fastener Dimensions Inc. 0SYU2	144	$16.38	Dla	SPM5A407MQC91
Jan 17, 2006	Fastener Dimensions Inc. 0SYU2	164	$16.50	Dla	SPM5A506MQ161
Mar 29, 1998	Howmet Global Fastening Systems Inc 5R793	200	$20.20	Dla	SP054098WQ761

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 7 buys on record in total.

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 MS51989-105D16.

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

DLA management data

FLIS unit price: $31.00
Unit of issue: EA
Acquisition advice: Z — Insurance item
Source of supply: SMS
Effective: Oct 1, 2025

Item characteristics

Thread Class: 3A
Thread Pitch Diameters: STUD THREAD INCHES 0.2778 TO 0.2795
Thread Direction: NUT THREAD RIGHT-HAND
Thread Direction: STUD THREAD RIGHT-HAND
Thread Length: STUD THREAD INCHES MINIMUM 0.375 AND INCHES MAXIMUM 0.405
Thread Length: NUT THREAD INCHES MINIMUM 0.485 AND INCHES MAXIMUM 0.515
Locking Feature: RING, LOCK SERRATED
Overall Length: INCHES MINIMUM 1.530 AND INCHES MAXIMUM 1.590
Distance From Serrated Portion To Nut End: INCHES MINIMUM 0.985 AND INCHES MAXIMUM 1.015
Distance From Serrated Portion To Stud End: INCHES MINIMUM 0.545 AND INCHES MAXIMUM 0.575
Distance From Serrated Portion To End Of Stud Thread: INCHES MINIMUM 0.140 AND INCHES MAXIMUM 0.200
Distance From Cotter Pin Hole Centerline To Nut End: FIRST HOLE INCHES MINIMUM 0.145 AND INCHES MAXIMUM 0.175
Cotter Pin Hole Diameter: FIRST HOLE INCHES NOMINAL 0.076
Serration Quantity: 17
Thread Quantity Per Inch: 28
Hardness Rating: ROCKWELL C MINIMUM 26.0
Nominal Thread Size: NUT THREAD INCHES 0.250
Surface Finish: NUT THD MICROINCHES 32.0
Serration Included Angle: DEGREES NOMINAL 86.0
Material: STEEL COMP 4130
Material Document And Classification: MIL SPEC SINGLE MATERIAL RESPONSE -IL-S-6758
Surface Treatment: OVERALL CADMIUM AND CHROMATE
Surface Treatment Document And Classification: OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--416 TY2 CL3
Thread Series Designator: NUT THREAD UNF

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.