PartsTable
Technical Data Sheet
Download PDF

1L637 — COLLAR,SHAFT

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

1L637: COLLAR,SHAFT.

The COLLAR,SHAFT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, thickness: 0.500 INCHES NOMINAL IN, bore_diameter: 0.6250 INCHES NOMINAL IN, outside_diameter: 1.125 INCHES NOMINAL IN, style_designator: PLAIN ROUND, end_item_identification: VAPOR CYCLE. This part is cataloged in the U.S.

Government catalog under NSN 3040-01-522-9978, 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
1L637
NSN: 3040-01-522-9978
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 25795 — W.W. GRAINGER, INC. DIV GOVERNMENT SALES DIVISION (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
thickness0.500 INCHES NOMINAL IN
bore_diameter0.6250 INCHES NOMINAL IN
outside_diameter1.125 INCHES NOMINAL IN
style_designatorPLAIN ROUND
securing_hole_quantity1
end_item_identificationVAPOR CYCLE
NSN3040-01-522-9978
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COLLAR,SHAFT TITLE COMPONENT PN 1L637 MFR COLLAR,SHAFT
KEY FEATURES
•
STYLE DESIGNATOR: PLAIN ROUND
•
OUTSIDE DIAMETER: 1.125 INCHES NOMINAL IN
•
SECURING HOLE QUANTITY: 1
•
BORE DIAMETER: 0.6250 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING
•
THICKNESS: 0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORPLAIN ROUND
OUTSIDE DIAMETER1.125 INCHES NOMINAL IN
SECURING HOLE QUANTITY1
END ITEM IDENTIFICATIONVAPOR CYCLE
BORE DIAMETER0.6250 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING
THICKNESS0.500 INCHES NOMINAL IN
OTHER ITEMS IN FSC 3040 — Miscellaneous Power Transmission Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3040-00-001-0046 3040-00-001-0047 3040-00-001-0048 3040-00-001-0068 3040-00-001-0077 3040-00-001-0078 3040-00-001-0089 3040-00-001-1224
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 1L637?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 1L637?
1L637 is a COLLAR,SHAFT.
What is the NSN for 1L637?
1L637 is cataloged in the U.S. Government catalog under NSN 3040-01-522-9978. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 1L637

✓ 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.