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74R21 — STUD,PLAIN

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

74R21: STUD,PLAIN.

The STUD,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1035, thread_length: 0.750 INCHES MINIMUM NUT THREAD IN, overall_length: 2.062 INCHES NOMINAL IN, thread_direction: RIGHT-HAND STUD THREAD, nominal_thread_size: 0.500 INCHES NUT THREAD IN, thread_quantity_per_inch: 13 STUD THREAD. This part is cataloged in the U.S.

Government catalog under NSN 5307-00-206-1483, 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
74R21
NSN: 5307-00-206-1483
FSC: 5307 — Studs
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 1035
thread_length0.750 INCHES MINIMUM NUT THREAD IN
overall_length2.062 INCHES NOMINAL IN
thread_directionRIGHT-HAND STUD THREAD
nominal_thread_size0.500 INCHES NUT THREAD IN
thread_quantity_per_inch13 STUD THREAD
thread_series_designatorUNF NUT THREAD
material_document_and_classificationQQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE
NSN5307-00-206-1483
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 74R21 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
THREAD LENGTH: 0.750 INCHES MINIMUM NUT THREAD IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE
•
THREAD DIRECTION: RIGHT-HAND STUD THREAD
•
NOMINAL THREAD SIZE: 0.500 INCHES NUT THREAD IN
TECHNICAL CHARACTERISTICS
THREAD LENGTH0.750 INCHES MINIMUM NUT THREAD IN
THREAD LENGTH0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM STUD THREAD IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE
OVERALL LENGTH2.062 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND STUD THREAD
THREAD DIRECTIONRIGHT-HAND NUT THREAD
NOMINAL THREAD SIZE0.500 INCHES NUT THREAD IN
NOMINAL THREAD SIZE0.500 INCHES STUD THREAD IN
THREAD QUANTITY PER INCH13 STUD THREAD
THREAD QUANTITY PER INCH20 NUT THREAD
SUBSTITUTES & CROSS-REFERENCES 5
BB4103Reference document
Same NSN cross-reference
Reference document — Secondary reference
022023Reference document
Same NSN cross-reference
Reference document — Secondary reference
10CD0-307Reference document
Same NSN cross-reference
Reference document — Secondary reference
410K1Reference document
Same NSN cross-reference
Reference document — Secondary reference
251001Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 74R21?
74R21 is a STUD,PLAIN.
What parts can replace 74R21?
There are 5 known substitutes for 74R21: BB4103, 022023, 10CD0-307 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 74R21?
74R21 is cataloged in the U.S. Government catalog under NSN 5307-00-206-1483. This indicates validated use in U.S. government and defense supply chains.
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