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1131PC228A — STUD,PLAIN

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

1131PC228A: STUD,PLAIN.

The STUD,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, thread_class: 2A NUT THREAD A, thread_length: 0.500 INCHES MINIMUM STUD THREAD IN, overall_length: 1.250 INCHES NOMINAL IN, thread_direction: RIGHT-HAND NUT THREAD, surface_treatment: PASSIVATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5307-00-088-1051, 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
1131PC228A
NSN: 5307-00-088-1051
FSC: 5307 — Studs
CAGE: 80256 — OUTBOARD MARINE CORP (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
thread_class2A NUT THREAD A
thread_length0.500 INCHES MINIMUM STUD THREAD IN
overall_length1.250 INCHES NOMINAL IN
thread_directionRIGHT-HAND NUT THREAD
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.312 INCHES NUT THREAD IN
thread_quantity_per_inch24 NUT THREAD
thread_series_designatorUNF NUT THREAD
NSN5307-00-088-1051
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1131PC228A · 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: 0.500 INCHES MINIMUM STUD THREAD IN
•
THREAD DIRECTION: RIGHT-HAND STUD THREAD
•
NOMINAL THREAD SIZE: 0.312 INCHES NUT THREAD IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
TECHNICAL CHARACTERISTICS
THREAD LENGTH0.500 INCHES MINIMUM STUD THREAD IN
THREAD LENGTH0.500 INCHES MINIMUM NUT THREAD IN
OVERALL LENGTH1.250 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND STUD THREAD
THREAD DIRECTIONRIGHT-HAND NUT THREAD
NOMINAL THREAD SIZE0.312 INCHES NUT THREAD IN
NOMINAL THREAD SIZE0.312 INCHES STUD THREAD IN
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS2A STUD THREAD A
THREAD CLASS2A NUT THREAD A
SUBSTITUTES & CROSS-REFERENCES 1
301185Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1131PC228A?
1131PC228A is a STUD,PLAIN.
What parts can replace 1131PC228A?
There is 1 known substitute for 1131PC228A: 301185. Substitute compatibility should be verified for your specific system.
What is the NSN for 1131PC228A?
1131PC228A is cataloged in the U.S. Government catalog under NSN 5307-00-088-1051. 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.