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B-1633 PIECE 15 — KEY,PISTON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

B-1633 PIECE 15: KEY,PISTON.

The KEY,PISTON is a the manufacturer industrial component. Key specifications include end_item_identification: WARREN PUMP INC PUMP MODEL NO. 525TS, general_characteristics_item_description: STEEL,ASTM A108,GRADE 1020.

This part is cataloged in the U.S. Government catalog under NSN 5315-01-195-9201, 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
B-1633 PIECE 15
NSN: 5315-01-195-9201
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
end_item_identificationWARREN PUMP INC PUMP MODEL NO. 525TS
general_characteristics_item_descriptionSTEEL,ASTM A108,GRADE 1020
NSN5315-01-195-9201
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: B-1633 PIECE 15 · 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
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL,ASTM A108,GRADE 1020
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL,ASTM A108,GRADE 1020
END ITEM IDENTIFICATIONWARREN PUMP INC PUMP MODEL NO. 525TS
SUBSTITUTES & CROSS-REFERENCES 2
B1633-1-15Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
B-1633Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 B-1633 PIECE 15?
B-1633 PIECE 15 is a KEY,PISTON.
What parts can replace B-1633 PIECE 15?
There are 2 known substitutes for B-1633 PIECE 15: B1633-1-15, B-1633. Substitute compatibility should be verified for your specific system.
What is the NSN for B-1633 PIECE 15?
B-1633 PIECE 15 is cataloged in the U.S. Government catalog under NSN 5315-01-195-9201. 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.