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Technical Data Sheet
PartsTable / O-RING / 37-204
37-204 ✓ Verified by PartsTable
BOTI · 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 SOCKET,SOCKET WRENCH is a BOTI industrial component. Key specifications include overall_length: 2.00 INCHES NOMINAL IN, special_features: DRIVE TANG SIZE 1/4 INCH. FASTENER SIZE 4MM.

DRIVE TYPE 6 POINT. MM, drive_end_outside_diameter: 0.449 INCHES NOMINAL IN, wrenching_end_opening_depth: 0.189 INCHES NOMINAL IN, wrenching_end_outside_diameter: 0.276 INCHES NOMINAL IN, part_name_assigned_by_controlling_agency: 1/4 INCH DRIVE 6 POINT DEEP SOCKET 4MM MM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-371-7605, 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
37-204
NSN: 5331-01-371-7605
FSC: 5331 — O-RING
CAGE: 71871 — ALFA LAVAL INC (USA)
SPECIFICATIONS
overall_length2.00 INCHES NOMINAL IN
special_featuresDRIVE TANG SIZE 1/4 INCH. FASTENER SIZE 4MM. DRIVE TYPE 6 POINT. MM
drive_end_outside_diameter0.449 INCHES NOMINAL IN
wrenching_end_opening_depth0.189 INCHES NOMINAL IN
wrenching_end_outside_diameter0.276 INCHES NOMINAL IN
part_name_assigned_by_controlling_agency1/4 INCH DRIVE 6 POINT DEEP SOCKET 4MM MM
NSN5331-01-371-7605
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 37-204 MFR: BOTI ⚠ 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
37204Interchangeable
interchangeable cross-reference
interchangeable
6520NCM071811Interchangeable
interchangeable cross-reference
interchangeable
823-812Interchangeable
interchangeable cross-reference
interchangeable
519993 ITEM 37204Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 37-204?
37-204 is a SOCKET,SOCKET WRENCH manufactured by BOTI.
What parts can replace 37-204?
There are 4 known substitutes for 37-204: 37204, 6520NCM071811, 823-812 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 37-204?
37-204 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-371-7605. 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