90281A638 — STUD,PLAIN

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

90281A638: STUD,PLAIN.

The STUD,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL COMP 410 OR STEEL COMP 4140 OR STEEL COMP 4145, thread_class: 2A STUD THREAD A, thread_length: 1.250 INCHES NOMINAL STUD THREAD IN, overall_length: 3.500 INCHES NOMINAL IN, hardness_rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM, thread_direction: RIGHT-HAND STUD THREAD. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-439-2441, 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

90281A638

NSN: 5307-01-439-2441
FSC: 5307 — Studs
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)

SPECIFICATIONS

material	STEEL COMP 410 OR STEEL COMP 4140 OR STEEL COMP 4145
thread_class	2A STUD THREAD A
thread_length	1.250 INCHES NOMINAL STUD THREAD IN
overall_length	3.500 INCHES NOMINAL IN
hardness_rating	26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
thread_direction	RIGHT-HAND STUD THREAD
surface_treatment	OXIDE OVERALL
nominal_thread_size	0.375 INCHES NUT THREAD IN
thread_quantity_per_inch	16 NUT THREAD
thread_series_designator	UNIFIED NATIONAL COARSE (UNC) STUD THREAD
material_document_and_classification	ASTM A193 ASSN STD ALL MATERIAL RESPONSES
NSN	5307-01-439-2441

COMPONENT DIAGRAM

KEY FEATURES

•

THREAD LENGTH: 1.250 INCHES NOMINAL NUT THREAD IN

•

HARDNESS RATING: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM

•

MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A193 ASSN STD ALL MATERIAL RESPONSES

•

THREAD DIRECTION: RIGHT-HAND STUD THREAD

•

NOMINAL THREAD SIZE: 0.375 INCHES STUD THREAD IN

TECHNICAL CHARACTERISTICS

THREAD LENGTH	1.250 INCHES NOMINAL NUT THREAD IN
THREAD LENGTH	1.250 INCHES NOMINAL STUD THREAD IN
HARDNESS RATING	26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A193 ASSN STD ALL MATERIAL RESPONSES
OVERALL LENGTH	3.500 INCHES NOMINAL IN
THREAD DIRECTION	RIGHT-HAND STUD THREAD
THREAD DIRECTION	RIGHT-HAND NUT THREAD
NOMINAL THREAD SIZE	0.375 INCHES STUD THREAD IN
NOMINAL THREAD SIZE	0.375 INCHES NUT THREAD IN
SURFACE TREATMENT	OXIDE OVERALL

OTHER ITEMS IN FSC 5307 — Studs

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

5307-00-000-6436 5307-00-001-1578 5307-00-001-1761 5307-00-001-2366 5307-00-001-4491 5307-00-001-4624 5307-00-001-4625

SUBSTITUTES & CROSS-REFERENCES 1

PWA80476-10Reference 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 90281A638?

90281A638 is a STUD,PLAIN.

What parts can replace 90281A638?

There is 1 known substitute for 90281A638: PWA80476-10. Substitute compatibility should be verified for your specific system.

What is the NSN for 90281A638?

90281A638 is cataloged in the U.S. Government catalog under NSN 5307-01-439-2441. This indicates validated use in U.S. government and defense supply chains.

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