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12291A — STUD,PLAIN

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

12291A: STUD,PLAIN.

The STUD,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL, thread_class: 3A NUT THREAD A, thread_length: 0.812 INCHES NOMINAL NUT THREAD IN, overall_length: 2.000 INCHES NOMINAL IN, thread_direction: RIGHT-HAND STUD THREAD, surface_treatment: PHOSPHATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5307-00-429-0138, 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
12291A
NSN: 5307-00-429-0138
FSC: 5307 — Studs
CAGE: 1ML14 — BRINKLEY TECHNOLOGY GROUP LLC DBA HERCULES MANUFACTURING (USA)
SPECIFICATIONS
materialSTEEL
thread_class3A NUT THREAD A
thread_length0.812 INCHES NOMINAL NUT THREAD IN
overall_length2.000 INCHES NOMINAL IN
thread_directionRIGHT-HAND STUD THREAD
surface_treatmentPHOSPHATE OVERALL
nominal_thread_size0.500 INCHES NUT THREAD IN
thread_pitch_diameters+0.4530 TO 0.4550 INCHES STUD THREAD IN
thread_quantity_per_inch13 STUD THREAD
thread_series_designatorUNS STUD THREAD
material_document_and_classificationSAE 1112 ASSN STD SINGLE MATERIAL RESPONSE
NSN5307-00-429-0138
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 12291A · 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: 0.812 INCHES NOMINAL NUT THREAD IN
•
THREAD PITCH DIAMETERS: +0.4530 TO 0.4550 INCHES STUD THREAD IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 1112 ASSN STD SINGLE MATERIAL RESPONSE
•
THREAD DIRECTION: RIGHT-HAND STUD THREAD
•
NOMINAL THREAD SIZE: 0.500 INCHES NUT THREAD IN
TECHNICAL CHARACTERISTICS
THREAD LENGTH0.812 INCHES NOMINAL NUT THREAD IN
THREAD LENGTH0.688 INCHES NOMINAL STUD THREAD IN
THREAD PITCH DIAMETERS+0.4530 TO 0.4550 INCHES STUD THREAD IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 1112 ASSN STD SINGLE MATERIAL RESPONSE
OVERALL LENGTH2.000 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
SURFACE TREATMENTPHOSPHATE 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12291A?
12291A is a STUD,PLAIN.
What is the NSN for 12291A?
12291A is cataloged in the U.S. Government catalog under NSN 5307-00-429-0138. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.