The Prefilter, cataloged under National Stock Number 7910-01-334-3241, is classified within Federal Supply Class 7910 (Floor Polishers and Vacuum Cleaning Equipment) of the Cleaning Equipment and Supplies group. The manufacturer of record is Pullman-Holt Corporation. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 7910-01-334-3241 |
| Primary Part Number | B527302 |
| Item Name | Prefilter |
| FSC / FSG | 7910 / 79 — Floor Polishers and Vacuum Cleaning Equipment |
| Manufacturer | Pullman-Holt Corporation |
| Status | ACTIVE |
| General Characteristics Item Description | POLYESTER; SQUARE SHAPE HAPA PREFILTER; FOR VACUUM CLEANER MODEL 86ASB |
| 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 |
|---|---|
| B527302 PRIMARY | Pullman-Holt Corporation (USA) |
| B526489 | Whit-Pullman/holt (USA) |
| Reference | Meaning |
|---|---|
| B526489 | 5/9 Secondary reference Pullman/holt Corp Sub of White Mop Wringer Co |
| B527302 | 5/9 Secondary reference Pullman/holt Corp Sub of White Mop Wringer Co |
NSN 7910-01-334-3241 is a Prefilter, manufactured by Pullman-Holt Corporation, classified under FSC 7910, Floor Polishers and Vacuum Cleaning Equipment. Status: active.
NSN 7910-01-334-3241 has 2 manufacturer part numbers on file: B527302 (Pullman-Holt Corporation), B526489 (Whit-Pullman/holt).
1 possible match (shared part number, not a government interchangeability claim): 7910-01-640-8065. Verify interchangeability with system specifications before substitution.
Key specifications for B527302: General Characteristics Item Description: POLYESTER; SQUARE SHAPE HAPA PREFILTER; FOR VACUUM CLEANER MODEL 86ASB. 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.