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JULY 2026Technical Data Sheet

A1660Retainer Assy,pump

Hermaseal Co Inc · NSN 2915-00-987-1991 · FSC 2915 · No Item Name Available
Verified by PartsTable
NSN 2915-00-987-1991 — this item is cataloged by the U.S. Government under National Stock Number 2915-00-987-1991. Primary manufacturer part number: A1660.
Features
  • Retainer Assy,pump — FSC 2915
  • 4 verified cross-references
  • Primary manufacturer: Hermaseal Co Inc
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Retainer Assy,pump, cataloged under National Stock Number 2915-00-987-1991, is classified within Federal Supply Class 2915 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Hermaseal Co Inc. This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameRetainer Assy,pump
FSC / FSG2915 — No Item Name Available (FSG 29)
ManufacturersHermaseal Co Inc (CAGE 73868); Ontic Engineering & Manufacturing, Inc Dba Ontic Us (CAGE 45934); Pesco Div Borg-Warner Corp (CAGE 77200); Hamilton Sundstrand Corporation (CAGE 99167)
Technical Specifications
ParameterValue
NSN2915-00-987-1991
Primary Part NumberA1660
Item NameRetainer Assy,pump
FSC / FSG2915 / 29 — No Item Name Available
ManufacturerHermaseal Co Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
2920-00-362-30111868804 INTERCHANGEABLE
Drive,engine,electrical Starter
Delco Remy America Inc
6210-00-452-5256A1660 INTERCHANGEABLE
Light,indicator
Page Aerospace Limited
4330-01-328-67051122-29 INTERCHANGEABLE
Stand,separator,oil
Separation & Recovery Systems Inc
8455-01-664-2983 INTERCHANGEABLE
Insignia,shoulder Sleeve
Cross-Reference Index
Part NumberManufacturer
A1660 Hermaseal Co Inc (USA)
112-229 Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA)
112-229 Pesco Div Borg-Warner Corp (USA)
112-229 Hamilton Sundstrand Corporation (USA)
Related Parts
2920-00-362-3011INTERCHANGEABLE
DRIVE,ENGINE,ELECTRICAL STARTER
1868804
6210-00-452-5256INTERCHANGEABLE
LIGHT,INDICATOR
A1660
4330-01-328-6705INTERCHANGEABLE
STAND,SEPARATOR,OIL
1122-29
8455-01-664-2983INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE

Frequently Asked Questions

What is NSN 2915-00-987-1991?

NSN 2915-00-987-1991 is a Retainer Assy,pump, manufactured by Hermaseal Co Inc, classified under FSC 2915 (No Item Name Available). Status: active.

What are the part numbers for NSN 2915-00-987-1991?

NSN 2915-00-987-1991 has 4 cross-referenced part numbers: A1660 (Hermaseal Co Inc), 112-229 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us), 112-229 (Pesco Div Borg-Warner Corp), 112-229 (Hamilton Sundstrand Corporation).

What NSN replaces 2915-00-987-1991?

There are 4 known substitutes for 2915-00-987-1991: 2920-00-362-3011, 6210-00-452-5256, 4330-01-328-6705 and 1 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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