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Technical Data Sheet
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4100637-1 — PISTON

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

4100637-1: PISTON.

The PISTON is a the manufacturer industrial component. Key specifications include fsc_application_data: STARTER,ENGINE,HYDRAULIC P/N 571999,NSN 2920011894272; APU P/N 161331-100 MOD T-62T-40LC-2, end_item_identification: KC-135R ACFT. This part is cataloged in the U.S.

Government catalog under NSN 2920-01-283-5725, 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
4100637-1
NSN: 2920-01-283-5725
FSC: 2920 — Engine Electrical System Components, Nonaircraft
CAGE: 1SR57 — TRIUMPH ACTUATION SYSTEMS LLC DIV TRIUMPH ACTUATION SYSTEMS - CLEMMONS (USA)
SPECIFICATIONS
fsc_application_dataSTARTER,ENGINE,HYDRAULIC P/N 571999,NSN 2920011894272; APU P/N 161331-100 MOD T-62T-40LC-2
end_item_identificationKC-135R ACFT
NSN2920-01-283-5725
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PISTON TITLE COMPONENT PN 4100637-1 MFR PISTON
KEY FEATURES
•
FSC APPLICATION DATA: STARTER,ENGINE,HYDRAULIC P/N 571999,NSN 2920011894272; APU P/N 161331-100 MOD T-62T-40LC-2
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATASTARTER,ENGINE,HYDRAULIC P/N 571999,NSN 2920011894272; APU P/N 161331-100 MOD T-62T-40LC-2
END ITEM IDENTIFICATIONKC-135R ACFT
OTHER ITEMS IN FSC 2920 — Engine Electrical System Components, Nonaircraft
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2920-00-000-0088 2920-00-000-0183 2920-00-000-0194 2920-00-001-3474 2920-00-001-3843 2920-00-001-6184 2920-00-001-6185 2920-00-001-8891
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 4100637-1?
4100637-1 is a PISTON.
What is the NSN for 4100637-1?
4100637-1 is cataloged in the U.S. Government catalog under NSN 2920-01-283-5725. 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.