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B1633-1-15 — KEY,PISTON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

B1633-1-15: 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
B1633-1-15
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: B1633-1-15 · 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 1
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 B1633-1-15?
B1633-1-15 is a KEY,PISTON.
What parts can replace B1633-1-15?
There is 1 known substitute for B1633-1-15: B-1633. Substitute compatibility should be verified for your specific system.
What is the NSN for B1633-1-15?
B1633-1-15 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.