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HD91A — CYLINDER HEAD,COMPRESSOR

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

HD91A: CYLINDER HEAD,COMPRESSOR.

The CYLINDER HEAD,COMPRESSOR is a the manufacturer industrial component. Key specifications include material: STEEL, special_features: 11.250 IN. LG;8.125 IN.

W;5.250 IN. H IN. This part is cataloged in the U.S.

Government catalog under NSN 4310-00-155-5100, 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
HD91A
NSN: 4310-00-155-5100
FSC: 4310 — Compressors and Vacuum Pumps
CAGE: 8FGX3 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORP DBA STEAM & AIR SOLUTIONS DIV CURTISS-WRIGHT STEAM AND AIR SOLUTIONS (USA)
SPECIFICATIONS
materialSTEEL
special_features11.250 IN. LG;8.125 IN. W;5.250 IN. H IN
NSN4310-00-155-5100
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CYLINDER HEAD,COMPRESSOR TITLE COMPONENT PN HD91A MFR CYLINDER HEAD,COMPRESS
KEY FEATURES
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
SPECIAL FEATURES11.250 IN. LG;8.125 IN. W;5.250 IN. H IN
MATERIALSTEEL
OTHER ITEMS IN FSC 4310 — Compressors and Vacuum Pumps
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4310-00-000-0050 4310-00-001-0059 4310-00-001-2044 4310-00-001-3477 4310-00-001-3493 4310-00-001-6194 4310-00-001-6381 4310-00-001-7755
SUBSTITUTES & CROSS-REFERENCES 1
8NReference document
Same NSN cross-reference
Reference document — Secondary reference
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 HD91A?
HD91A is a CYLINDER HEAD,COMPRESSOR.
What parts can replace HD91A?
There is 1 known substitute for HD91A: 8N. Substitute compatibility should be verified for your specific system.
What is the NSN for HD91A?
HD91A is cataloged in the U.S. Government catalog under NSN 4310-00-155-5100. 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.