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R137 — TRANSMISSION,MECHANICAL,NONVEHIC

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

R137: TRANSMISSION,MECHANICAL,NONVEHIC.

TRANSMISSION,MECHANICAL,NONVEHIC. Key specifications include special_features: 875 INCH CHECK VALVE, REFRIGERANT IN, end_item_identification: CHILLER, WATER. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-344-8940, 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
R137
NSN: 5305-00-344-8940
NIINs: 003448940, 010748075, 015233637
FSC: 5305 — Screws
CAGE: 41758 — O F MOSSBERG & SONS INC (USA)
SPECIFICATIONS
special_features875 INCH CHECK VALVE, REFRIGERANT IN
end_item_identificationCHILLER, WATER
NSN5305-00-344-8940
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: R137 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is R137?
R137 is a TRANSMISSION,MECHANICAL,NONVEHIC.
What is the NSN for R137?
R137 is cataloged in the U.S. Government catalog under NSN 5305-00-344-8940. 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.