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Technical Data Sheet
PartsTable / COMPONENT / PB31-2SS
PB31-2SS ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The LOCK SPRING,TURNLOCK FASTENER is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-780-3430, 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
PB31-2SS
NSN: 5325-00-780-3430
FSC: 5325
CAGE: 72794 — SOUTHCO INC (USA)
SPECIFICATIONS
Part NumberPB31-2SS
NSN5325-00-780-3430
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: PB31-2SS · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
250615Interchangeable
interchangeable cross-reference
interchangeable
2794Interchangeable
interchangeable cross-reference
interchangeable
151R4Interchangeable
interchangeable cross-reference
interchangeable
D-4212Interchangeable
interchangeable cross-reference
interchangeable
A56667Interchangeable
interchangeable cross-reference
interchangeable
3016T84P01Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is PB31-2SS?
PB31-2SS is a LOCK SPRING,TURNLOCK FASTENER.
What parts can replace PB31-2SS?
There are 21 known substitutes for PB31-2SS: 250615, 2794, 151R4 and 18 more. Substitute compatibility should be verified for your specific system.
Is PB31-2SS still available?
PB31-2SS is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026