MS51831A208L — INSERT,SCREW THREAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

MS51831A208L: INSERT,SCREW THREAD.

The INSERT,SCREW THREAD is a the manufacturer industrial component. Key specifications include length: 0.870 INCHES NOMINAL IN, material: STEEL COMP 4140 OVERALL, insert_size: 0.875-14 UNF CLASS 2A A, thread_class: 3B, thread_length: 0.775 INCHES NOMINAL IN, special_features: HAS INTERNAL THREAD LOCK. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-240-4716, 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

MS51831A208L

NSN: 5325-00-240-4716
FSC: 5325 — Fastening Devices
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

SPECIFICATIONS

length	0.870 INCHES NOMINAL IN
material	STEEL COMP 4140 OVERALL
insert_size	0.875-14 UNF CLASS 2A A
thread_class	3B
thread_length	0.775 INCHES NOMINAL IN
special_features	HAS INTERNAL THREAD LOCK
style_designator	GROOVED KEYLOCK
thread_direction	RIGHT-HAND
features_provided	INDIVIDUALLY KEYED
surface_treatment	CADMIUM AND CHROMATE OVERALL
nominal_thread_size	0.625 INCHES IN
thread_quantity_per_inch	18
NSN	5325-00-240-4716

COMPONENT DIAGRAM

KEY FEATURES

•

LENGTH: 0.870 INCHES NOMINAL IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD LENGTH: 0.775 INCHES NOMINAL IN

•

INSERT SIZE: 0.875-14 UNF CLASS 2A A

•

STYLE DESIGNATOR: GROOVED KEYLOCK

•

MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5625 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL

•

INTERNAL THREAD RELIEF DEPTH: 0.100 INCHES NOMINAL IN

•

FEATURES PROVIDED: INDIVIDUALLY KEYED

TECHNICAL CHARACTERISTICS

LENGTH	0.870 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.775 INCHES NOMINAL IN
INSERT SIZE	0.875-14 UNF CLASS 2A A
STYLE DESIGNATOR	GROOVED KEYLOCK
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-5625 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
INTERNAL THREAD RELIEF DEPTH	0.100 INCHES NOMINAL IN
FEATURES PROVIDED	INDIVIDUALLY KEYED
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.625 INCHES IN

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 2

NAS1395-10LReference document

Same NSN cross-reference

Reference document — Secondary reference

KNHL1018JMXSYReference document

Same NSN cross-reference

Reference document — Secondary reference

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 MS51831A208L?

MS51831A208L is a INSERT,SCREW THREAD.

What parts can replace MS51831A208L?

There are 2 known substitutes for MS51831A208L: NAS1395-10L, KNHL1018JMXSY. Substitute compatibility should be verified for your specific system.

What is the NSN for MS51831A208L?

MS51831A208L is cataloged in the U.S. Government catalog under NSN 5325-00-240-4716. This indicates validated use in U.S. government and defense supply chains.

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