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MS51833A202-21 Locked in Stud

5307-01-391-4375

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Official Item Classification

Name
Locked in Stud
Part Number
MS51833A202-21
(NSN) National Stock Number
5307-01-391-4375
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5307 Studs
(INC) Item Name Code
16012
(FIIG) Federal Item Identification Guide
A051A0
Date
06/10/1994 (32 years ago)

right-hand stud thread thread direction, right-hand nut thread thread direction, 3a nut thread thread class, 2a stud thread thread class, 0.365 inches minimum and 0.390 inches maximum stud thread thread length

Specs & Compatibility

Thread Class

2a stud thread

Thread Class

3a nut thread

Thread Direction

right-hand nut thread

Thread Direction

right-hand stud thread

Thread Length

0.365 inches minimum and 0.390 inches maximum stud thread

Thread Length

0.440 inches minimum and 0.500 inches maximum nut thread

Locking Feature

ring, lock keyed

Overall Length

1.687 inches nominal

Thread Quantity Per Inch

16 stud thread

Thread Quantity Per Inch

28 nut thread

Hardness Rating

28.0 rockwell c minimum and 38.0 rockwell c maximum

Nominal Thread Size

0.250 inches nut thread

Nominal Thread Size

0.375 inches stud thread

Distance From End Of Stud End Threads To Nut End

1.282 inches minimum and 1.342 inches maximum

Surface Finish

32.0 microinches overall

Surface Finish

63.0 microinches body

Special Features

furnish with 2 keys psi 140,000

Material

iron alloy 660

Material Document And Classification

ams5731 assn std single material response or ams5734 assn std single material response or ams5737 assn std single material response

Surface Treatment

passivate overall

Surface Treatment Document And Classification

qq-p-35 fed spec single treatment response overall

Style Designator

locked in

Thread Series Designator

unc stud thread

Thread Series Designator

unjf nut thread

Regulatory Compliance

Precious Metals Indicator
A

Item does not contain precious metal.

Criticality Code
X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Hazardous Metals Indicator
N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Pseudo Item Name Code

0016012

Related Hardware Products

Part Number Description
MS51833A202-21 Locked in Stud

Frequently Asked Questions

What is the FSCG of the NSN 5307-01-391-4375?
The FSCG of the NSN 5307-01-391-4375 is 5307
Does NSN 5307-01-391-4375 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 5307-01-391-4375 contain precious materials?
Item does not contain precious metal.
Does NSN 5307-01-391-4375 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 5307-01-391-4375 was assigned to the Federal Catalog?
It was assigned 32 years ago, on Fri, Jun 10, 1994