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Technical Data Sheet
PartsTable / COMPONENT / SM-B-187284
SM-B-187284 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 0.064 INCHES NOMINAL IN, style_designator: PROJECTION BOTH ENDS RIGHT EXTERNAL THREAD, width_across_flats: 0.250 INCHES NOMINAL IN, cross-sectional_shape: HEXAGON. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-652-8951, 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
SM-B-187284
NSN: 5340-00-652-8951
FSC: 5340
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
length0.064 INCHES NOMINAL IN
style_designatorPROJECTION BOTH ENDS RIGHT EXTERNAL THREAD
width_across_flats0.250 INCHES NOMINAL IN
cross-sectional_shapeHEXAGON
NSN5340-00-652-8951
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: SM-B-187284 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
KEY FEATURES
•
LENGTH: 0.064 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PROJECTION BOTH ENDS RIGHT EXTERNAL THREAD
•
WIDTH ACROSS FLATS: 0.250 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE: HEXAGON
TECHNICAL CHARACTERISTICS (FLIS)
LENGTH0.064 INCHES NOMINAL IN
STYLE DESIGNATORPROJECTION BOTH ENDS RIGHT EXTERNAL THREAD
WIDTH ACROSS FLATS0.250 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPEHEXAGON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
55968Upgraded Successor
successor cross-reference
successor
TE1204Interchangeable
interchangeable cross-reference
interchangeable
460TE1204Interchangeable
interchangeable cross-reference
interchangeable
30D106G025BB2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SM-B-187284?
SM-B-187284 is a STANDOFF,THREADED,SPACING.
What parts can replace SM-B-187284?
There are 4 known substitutes for SM-B-187284: 55968, TE1204, 460TE1204 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SM-B-187284?
SM-B-187284 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-652-8951. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026