The Sound Absorber, cataloged under National Stock Number 4330-01-452-4254, is classified within Federal Supply Class 4330 (Centrifugals, Separators, and Pressure and Vacuum Filters) of the Pumps and Compressors group. The manufacturer of record is Boll Filter Corporation. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-452-4254 |
| Primary Part Number | 2614171 |
| Item Name | Sound Absorber |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Boll Filter Corporation |
| Status | ACTIVE |
| General Characteristics Item Description | R 1/8" SOUND ABSORBER USED IN BOLL FILTER CORP. GGG-40 BACKFLUSH FILTER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2614171 PRIMARY | Boll Filter Corporation (USA) |
NSN 4330-01-452-4254 is a Sound Absorber, manufactured by Boll Filter Corporation, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-452-4254 has 1 manufacturer part number on file: 2614171 (Boll Filter Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5995-01-499-6843. Verify interchangeability with system specifications before substitution.
Key specifications for 2614171: General Characteristics Item Description: R 1/8" SOUND ABSORBER USED IN BOLL FILTER CORP. GGG-40 BACKFLUSH FILTER; Part Name Assigned by Controlling Agency: SOUND ABSORBER; End Item Identification: NAVY WEAPONS CODE TH, STRATEGIC SEALIFT CONVERSION SHIPS CLASS. 1 specification is 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.
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.