PartsTable
Technical Data Sheet
A1128-1 ✓ Verified by PartsTable
· HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include special_features: ALSO USED ON ASSEMBLY FUEL PUMP A1-373-1, end_item_identification: FUEL PUMP, P/N 2B7-38, FUEL PUMP ON TUCACO AIRCRAFT, part_name_assigned_by_controlling_agency: PUMP HOUSING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-976-5905, 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
A1128-1
NSN: 4730-00-976-5905
FSC: 4730
CAGE: 70255 — EMERSON ELECTRIC CO ALCO CONTROLS DIV (USA)
SPECIFICATIONS
special_featuresALSO USED ON ASSEMBLY FUEL PUMP A1-373-1
end_item_identificationFUEL PUMP, P/N 2B7-38, FUEL PUMP ON TUCACO AIRCRAFT
general_characteristics_item_descriptionP/O SOLENOID VALVE,ALCO VALVE CO,P/N 5120,U/O REFRIGERATOR ASSY,JOY MFG CO,P/N X14511-1,END ITEM,COMPRESSOR,HELIUM,NITROGEN,AIR,JOY MFG CO,MODEL NO. 80HEP3M51
part_name_assigned_by_controlling_agencyPUMP HOUSING
NSN4730-00-976-5905
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: A1128-1 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
GENERAL CHARACTERISTICS ITEM DESCRIPTION: P/O SOLENOID VALVE,ALCO VALVE CO,P/N 5120,U/O REFRIGERATOR ASSY,JOY MFG CO,P/N X14511-1,END ITEM,COMPRESSOR,HELIUM,NITROGEN,AIR,JOY MFG CO,MODEL NO. 80HEP3M51
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONP/O SOLENOID VALVE,ALCO VALVE CO,P/N 5120,U/O REFRIGERATOR ASSY,JOY MFG CO,P/N X14511-1,END ITEM,COMPRESSOR,HELIUM,NITROGEN,AIR,JOY MFG CO,MODEL NO. 80HEP3M51
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
11281Interchangeable
interchangeable cross-reference
interchangeable
S13040-14Interchangeable
interchangeable cross-reference
interchangeable
6026-1035-14Interchangeable
interchangeable cross-reference
interchangeable
6026-1032-16Interchangeable
interchangeable cross-reference
interchangeable
LLL-M-71 TY3Interchangeable
interchangeable cross-reference
interchangeable
12520-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A1128-1?
A1128-1 is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace A1128-1?
There are 11 known substitutes for A1128-1: 11281, S13040-14, 6026-1035-14 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A1128-1?
A1128-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-976-5905. This indicates validated use in U.S. government and defense supply chains.
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