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051B-4001 — DISK,SOLID,PLAIN

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

051B-4001: DISK,SOLID,PLAIN.

The DISK,SOLID,PLAIN is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5340-01-302-9542, 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
051B-4001
NSN: 5340-01-302-9542
FSC: 5340 — Hardware, Commercial
CAGE: 63470 — C. CROUTHAMEL & CO., INC. (USA)
SPECIFICATIONS
Part Number051B-4001
NSN5340-01-302-9542
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 051B-4001 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESSTEE,CORROSION RESISTING.AISI COMP 431 OR AISI COMP 630,MAGNETIC; ANNEALED; PASSIVATED; 0.985 IN. MIN 1.015 IN. MAX DIA; 0.438 IN. MAX H;BLIND THREADED MTG HOLE 0.190-32UNF-2B BY 0.250 IN. MIN DP W/COUNTERSINK 45.0 DEG BY 0.250 IN. DIA;BOTH FACES PARALLEL WITHIN 2.0 DEG ACROSS DIAMETER; ONE FACE HAS FOUR TO SIX CONCENTRIC ANNULAR VEE SHAPED GROOVES 0.031 IN. W BY 0.031 IN. DP; GROOVE SHAPE NOT CRITICAL; USED TO TRANSMIT VIBRATIONS BETWEEN TEST EQUIPMENT AND ITEMS BEING TESTED IN
SUBSTITUTES & CROSS-REFERENCES 1
02615Reference document
Same NSN cross-reference
Reference document — Secondary 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 051B-4001?
051B-4001 is a DISK,SOLID,PLAIN.
What parts can replace 051B-4001?
There is 1 known substitute for 051B-4001: 02615. Substitute compatibility should be verified for your specific system.
What is the NSN for 051B-4001?
051B-4001 is cataloged in the U.S. Government catalog under NSN 5340-01-302-9542. This indicates validated use in U.S. government and defense supply chains.
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