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PL999R051 PIECE — NUT,PLAIN,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

PL999R051 PIECE: NUT,PLAIN,ROUND.

The NUT,PLAIN,ROUND is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5310-01-147-6742, 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
PL999R051 PIECE
NSN: 5310-01-147-6742
FSC: 5310 — Nuts and Washers
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
Part NumberPL999R051 PIECE
NSN5310-01-147-6742
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: PL999R051 PIECE · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES 3
P237Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
PL999R0501PIECEReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
PL999R0501 PIECE 44Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 PL999R051 PIECE?
PL999R051 PIECE is a NUT,PLAIN,ROUND.
What parts can replace PL999R051 PIECE?
There are 3 known substitutes for PL999R051 PIECE: P237, PL999R0501PIECE, PL999R0501 PIECE 44. Substitute compatibility should be verified for your specific system.
What is the NSN for PL999R051 PIECE?
PL999R051 PIECE is cataloged in the U.S. Government catalog under NSN 5310-01-147-6742. 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.