MS51831-103 — INSERT,SCREW THREAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

MS51831-103: INSERT,SCREW THREAD.

The INSERT,SCREW THREAD is a the manufacturer industrial component. Key specifications include length: 0.437 INCHES NOMINAL IN, material: STEEL COMP 302 OVERALL, insert_size: 0.500-13, thread_class: 3B, thread_length: 0.367 INCHES NOMINAL IN, special_features: HAS INTERNAL THREAD LOCK. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-420-1901, 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

MS51831-103

NSN: 5325-00-420-1901
NIINs: 004201901, 009520432
FSC: 5325 — Fastening Devices
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

SPECIFICATIONS

length	0.437 INCHES NOMINAL IN
material	STEEL COMP 302 OVERALL
insert_size	0.500-13
thread_class	3B
thread_length	0.367 INCHES NOMINAL IN
special_features	HAS INTERNAL THREAD LOCK
style_designator	KEYLOCK
thread_direction	RIGHT-HAND
features_provided	INDIVIDUALLY KEYED
surface_treatment	PASSIVATE OVERALL
nominal_thread_size	0.312 INCHES IN
thread_quantity_per_inch	18
NSN	5325-00-420-1901

COMPONENT DIAGRAM

KEY FEATURES

•

LENGTH: 0.437 INCHES NOMINAL IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD LENGTH: 0.367 INCHES NOMINAL IN

•

INSERT SIZE: 0.500-13

•

STYLE DESIGNATOR: KEYLOCK

•

MATERIAL DOCUMENT AND CLASSIFICATION: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL

•

INTERNAL THREAD RELIEF DEPTH: 0.070 INCHES NOMINAL IN

•

FEATURES PROVIDED: INDIVIDUALLY KEYED

TECHNICAL CHARACTERISTICS

LENGTH	0.437 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.367 INCHES NOMINAL IN
INSERT SIZE	0.500-13
STYLE DESIGNATOR	KEYLOCK
MATERIAL DOCUMENT AND CLASSIFICATION	FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
INTERNAL THREAD RELIEF DEPTH	0.070 INCHES NOMINAL IN
FEATURES PROVIDED	INDIVIDUALLY KEYED
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.312 INCHES IN

SUBSTITUTES & CROSS-REFERENCES 4

KNHL518JReference document

Same NSN cross-reference

Reference document — Secondary reference

KH9005-518Reference document

Same NSN cross-reference

Reference document — Secondary reference

KNHL518Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

MS51831-103LSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is MS51831-103?

MS51831-103 is a INSERT,SCREW THREAD.

What parts can replace MS51831-103?

There are 4 known substitutes for MS51831-103: KNHL518J, KH9005-518, KNHL518 and 1 more. Substitute compatibility should be verified for your specific system.

What is the NSN for MS51831-103?

MS51831-103 is cataloged in the U.S. Government catalog under NSN 5325-00-420-1901. This indicates validated use in U.S. government and defense supply chains.

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