The Parts Kit,rotary Pump, cataloged under National Stock Number 4320-01-178-3033, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Komatsu America Corp.. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-178-3033 |
| Primary Part Number | 742953C1 |
| Item Name | Parts Kit,rotary Pump |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Komatsu America Corp. |
| Status | ACTIVE |
| Component Quantity | 61 |
| Nonsupply Items and Quantities | 11671 60945 BODY 1,1671 33388 FLANGE 1,11671 24814 DRIVE GEAR 1,11671 20858 IDLER GEAR 1,11671 26668 BUSHINGS 4; 11671 27261 ADAPTER PLATE 1,11671 55-113-19009 O-RING 2,11671 55-134-17007 O-RING 1,11671 55-12-19009 O-RING 2,11671 55-143-19009 O-RING 2,11671 55-149-19009 O-RING 1,11671 55-216-19009 O-RING 4,11671 55-906-12-19009 O-RING 1,11671 14881 SEAL 2,11671 58-A5000-150 SNAP RING 1,11671 65-12HP50N-S PLUG 1,11671 10835 BACK-UP RING 4,11671 10566 DOWEL-BUSHING 2,11671 20S-A-16AS2116 DOWEL BODY 2,11671 74-125 BALL 4,11671 73-062-0375 ROLL PIN 4,11671 14719 PISTON 2,11671 13208 SPRING 2,11671 62A-6-10H CAPSCREWS 8,11671 14844 PLUG 1,11671 11404 RETAINER 2,11671 11403 SEAT 2,11671 74-250 BALL 2 A |
| 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 |
|---|---|
| 742953C1 PRIMARY | Komatsu America Corp. (USA) |
| Reference | Meaning |
|---|---|
| 27519 | 5/9 Secondary reference Dana Corp Tyrone Hydraulics Inc Div |
| 742953C1 | 3/9 Design control — primary reference Komatsu American Intl Co |
NSN 4320-01-178-3033 is a Parts Kit,rotary Pump, manufactured by Komatsu America Corp., classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-178-3033 has 1 manufacturer part number on file: 742953C1 (Komatsu America Corp.).
3 possible matches (shared part number, not a government interchangeability claim): 2530-01-211-0928, 5985-01-274-5555, 6515-01-600-2556. Verify interchangeability with system specifications before substitution.
Key specifications for 742953C1: Component Quantity: 61; Nonsupply Items and Quantities: 11671 60945 BODY 1,1671 33388 FLANGE 1,11671 24814 DRIVE GEAR 1,11671 20858 IDLER GEAR 1,11671 26668 BUSHINGS 4; 11671 27261 ADAPTER PLATE 1,11671 55-113-19009 O-RING 2,11671 55-134-17007 O-RING 1,11671 55-12-19009 O-RING 2,11671 55-143-19009 O-RING 2,11671 55-149-19009 O-RING 1,11671 55-216-19009 O-RING 4,11671 55-906-12-19009 O-RING 1,11671 14881 SEAL 2,11671 58-A5000-150 SNAP RING 1,11671 65-12HP50N-S PLUG 1,11671 10835 BACK-UP RING 4,11671 10566 DOWEL-BUSHING 2,11671 20S-A-16AS2116 DOWEL BODY 2,11671 74-125 BALL 4,11671 73-062-0375 ROLL PIN 4,11671 14719 PISTON 2,11671 13208 SPRING 2,11671 62A-6-10H CAPSCREWS 8,11671 14844 PLUG 1,11671 11404 RETAINER 2,11671 11403 SEAT 2,11671 74-250 BALL 2 A. 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.
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.