The Seal Assembly,expanding, cataloged under National Stock Number 2915-01-220-3741, is classified within Federal Supply Class 2915 (Engine Fuel System Components, Aircraft and Missile Prime Movers) of the Engine Accessories group. The manufacturer of record is Trelleborg Sealing Solutions Us, Inc.. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2915-01-220-3741 |
| Primary Part Number | 953539-31 |
| Item Name | Seal Assembly,expanding |
| FSC / FSG | 2915 / 29 — Engine Fuel System Components, Aircraft and Missile Prime Movers |
| Manufacturer | Trelleborg Sealing Solutions Us, Inc. |
| Status | ACTIVE |
| FSC Application Data | ACFT ENG FUEL SYSTEM COMPONENTS |
| General Characteristics Item Description | 2 INTERFACING RINGS 0.061 - 0.069 IN. THK,0.187 IN. W,HSG RING BORE 2.001 IN. DIA,PISTON DIA 1.997; EXPANDER CRES 0.0030 IN. THK,0.093 IN. W,4.500 IN. L IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 953539-31 | Honeywell International Inc Div Aerospace-South Bend (bendix Dr) (USA) |
| 953539-31 PRIMARY | Trelleborg Sealing Solutions Us, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 2915PL1859990 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 953539E | D/9 Drawing number reference only Honeywell International Inc Div Aerospace-South Bend (bendix Dr) |
NSN 2915-01-220-3741 is a Seal Assembly,expanding, manufactured by Trelleborg Sealing Solutions Us, Inc., classified under FSC 2915, Engine Fuel System Components, Aircraft and Missile Prime Movers. Status: active.
NSN 2915-01-220-3741 has 2 manufacturer part numbers on file: 953539-31 (Honeywell International Inc Div Aerospace-South Bend (bendix Dr)), 953539-31 (Trelleborg Sealing Solutions Us, Inc.).
Key specifications for 953539-31: FSC Application Data: ACFT ENG FUEL SYSTEM COMPONENTS; General Characteristics Item Description: 2 INTERFACING RINGS 0.061 - 0.069 IN. THK,0.187 IN. W,HSG RING BORE 2.001 IN. DIA,PISTON DIA 1.997; EXPANDER CRES 0.0030 IN. THK,0.093 IN. W,4.500 IN. L IN; End Item Identification: RCVV ACTUATOR 441293,F100-PW-220 ACFT ENGINE. 2 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 2915-01-220-3741 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.