MS51831A111 — INSERT,SCREW THREAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

MS51831A111: INSERT,SCREW THREAD.

The INSERT,SCREW THREAD is a the manufacturer industrial component. Key specifications include length: 1.375 INCHES NOMINAL IN, material: STEEL COMP 4140 OVERALL, insert_size: 1.375-12 UNF 2A A, style_designator: KEYLOCK, full_internal_thread_length: 1.275 INCHES NOMINAL IN, internal_thread_relief_depth: 0.100 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-255-4140, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS

MS51831A111

NSN: 5325-01-255-4140
FSC: 5325 — Fastening Devices
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

SPECIFICATIONS

length	1.375 INCHES NOMINAL IN
material	STEEL COMP 4140 OVERALL
insert_size	1.375-12 UNF 2A A
style_designator	KEYLOCK
full_internal_thread_length	1.275 INCHES NOMINAL IN
internal_thread_relief_depth	0.100 INCHES NOMINAL IN
material_document_and_classification	MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN	5325-01-255-4140

COMPONENT DIAGRAM

KEY FEATURES

•

LENGTH: 1.375 INCHES NOMINAL IN

•

INSERT SIZE: 1.375-12 UNF 2A A

•

STYLE DESIGNATOR: KEYLOCK

•

MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL

•

INTERNAL THREAD RELIEF DEPTH: 0.100 INCHES NOMINAL IN

•

FULL INTERNAL THREAD LENGTH: 1.275 INCHES NOMINAL IN

•

MATERIAL: STEEL COMP 4140 OVERALL

TECHNICAL CHARACTERISTICS

LENGTH	1.375 INCHES NOMINAL IN
INSERT SIZE	1.375-12 UNF 2A A
STYLE DESIGNATOR	KEYLOCK
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
INTERNAL THREAD RELIEF DEPTH	0.100 INCHES NOMINAL IN
FULL INTERNAL THREAD LENGTH	1.275 INCHES NOMINAL IN
MATERIAL	STEEL COMP 4140 OVERALL

OTHER ITEMS IN FSC 5325 — Fastening Devices

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5325-00-000-1884 5325-00-000-9988 5325-00-001-1567 5325-00-001-2043 5325-00-001-3842 5325-00-001-3858 5325-00-001-3871 5325-00-001-4317

SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is MS51831A111?

MS51831A111 is a INSERT,SCREW THREAD.

What is the NSN for MS51831A111?

MS51831A111 is cataloged in the U.S. Government catalog under NSN 5325-01-255-4140. This indicates validated use in U.S. government and defense supply chains.

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