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3728-1057-1 — SPACER,RING

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

3728-1057-1: SPACER,RING.

The SPACER,RING is a the manufacturer industrial component. Key specifications include material: STEEL, surface_finish: 125.0 MICROINCHES RIGHT SIDE, inside_diameter: 2.625 INCHES MINIMUM AND 2.635 INCHES MAXIMUM IN, outside_diameter: 3.500 INCHES MINIMUM AND 3.510 INCHES MAXIMUM IN, overall_thickness: 0.180 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN, surface_treatment: OXIDE. This part is cataloged in the U.S.

Government catalog under NSN 5365-00-421-9982, 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
3728-1057-1
NSN: 5365-00-421-9982
FSC: 5365 — Bushings, Rings, Shims, and Spacers
CAGE: 04614 — TEXTRON SYSTEMS CORPORATION DBA TEXTRON SYSTEMS CORP (USA)
SPECIFICATIONS
materialSTEEL
surface_finish125.0 MICROINCHES RIGHT SIDE
inside_diameter2.625 INCHES MINIMUM AND 2.635 INCHES MAXIMUM IN
outside_diameter3.500 INCHES MINIMUM AND 3.510 INCHES MAXIMUM IN
overall_thickness0.180 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
surface_treatmentOXIDE
NSN5365-00-421-9982
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPACER,RING TITLE COMPONENT PN 3728-1057-1 MFR SPACER,RING
KEY FEATURES
•
SURFACE FINISH: 125.0 MICROINCHES RIGHT SIDE
•
OUTSIDE DIAMETER: 3.500 INCHES MINIMUM AND 3.510 INCHES MAXIMUM IN
•
OVERALL THICKNESS: 0.180 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
•
INSIDE DIAMETER: 2.625 INCHES MINIMUM AND 2.635 INCHES MAXIMUM IN
•
SURFACE TREATMENT: OXIDE
TECHNICAL CHARACTERISTICS
SURFACE FINISH125.0 MICROINCHES RIGHT SIDE
SURFACE FINISH125.0 MICROINCHES LARGEST OUTSIDE DIAMETER
SURFACE FINISH125.0 MICROINCHES LEFT SIDE
SURFACE FINISH125.0 MICROINCHES BORE
OUTSIDE DIAMETER3.500 INCHES MINIMUM AND 3.510 INCHES MAXIMUM IN
OVERALL THICKNESS0.180 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
INSIDE DIAMETER2.625 INCHES MINIMUM AND 2.635 INCHES MAXIMUM IN
SURFACE TREATMENTOXIDE
MATERIALSTEEL
OTHER ITEMS IN FSC 5365 — Bushings, Rings, Shims, and Spacers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5365-00-000-6078 5365-00-000-7436 5365-00-001-1292 5365-00-001-1365 5365-00-001-1841 5365-00-001-1915 5365-00-001-1916 5365-00-001-1940
SUBSTITUTES & CROSS-REFERENCES 1
9282988-01Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 3728-1057-1?
3728-1057-1 is a SPACER,RING.
What parts can replace 3728-1057-1?
There is 1 known substitute for 3728-1057-1: 9282988-01. Substitute compatibility should be verified for your specific system.
What is the NSN for 3728-1057-1?
3728-1057-1 is cataloged in the U.S. Government catalog under NSN 5365-00-421-9982. 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.