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PartsTable / COMPONENT / R21257
R21257 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The R21257 is a the manufacturer industrial component. Key specifications include material: STEEL, construction: ONE-PIECE, aperture_diameter: 1.750 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5365-00-769-6350, 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
R21257
NSN: 5365-00-769-6350
FSC: 5365
CAGE: 83120 — PRESSED METALS OF AMERICA INC (USA)
SPECIFICATIONS
materialSTEEL
constructionONE-PIECE
aperture_diameter1.750 INCHES NOMINAL IN
NSN5365-00-769-6350
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available R21257 TITLE COMPONENT PN R21257 MFR R21257
KEY FEATURES
•
MATERIAL: STEEL
•
APERTURE DIAMETER: 1.750 INCHES NOMINAL IN
•
CONSTRUCTION: ONE-PIECE
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL
APERTURE DIAMETER1.750 INCHES NOMINAL IN
CONSTRUCTIONONE-PIECE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
7702848Interchangeable
interchangeable cross-reference
interchangeable
150951Interchangeable
interchangeable cross-reference
interchangeable
R20401Interchangeable
interchangeable cross-reference
interchangeable
362-523-9013Interchangeable
interchangeable cross-reference
interchangeable
1250-2-3Interchangeable
interchangeable cross-reference
interchangeable
EON-001250-02-03-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R21257?
R21257 is a R21257.
What parts can replace R21257?
There are 11 known substitutes for R21257: 7702848, 150951, R20401 and 8 more. Substitute compatibility should be verified for your specific system.
Is R21257 still available?
R21257 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026