The Roller,material Handling, cataloged under National Stock Number 3990-01-508-2949, is classified within Federal Supply Class 3990 (Miscellaneous Materials Handling Equipment) of the Materials Handling Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 3990-01-508-2949 |
| Primary Part Number | 752-7068422-5 |
| Item Name | Roller,material Handling |
| FSC / FSG | 3990 / 39 — Miscellaneous Materials Handling Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Length | 2.858 INCHES NOMINAL IN |
| Material Document and Classification | HYTREL 7246 MFR REF SINGLE MATERIAL RESPONSE |
| Diameter | 2.000 INCHES MINIMUM AND 4.000 INCHES MAXIMUM IN |
| Roller Type | SOLID |
| Material | RUBBER POLYESTER URETHANE CLASS AU |
| 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 |
|---|---|
| 752-7068422-5 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 752-7068422 | D/9 Drawing number reference only Naval Sea Systems Command |
| H832-0310-5 | 5/2 Secondary reference U.S. Government activity |
NSN 3990-01-508-2949 is a Roller,material Handling, manufactured by Naval Sea Systems Command, classified under FSC 3990, Miscellaneous Materials Handling Equipment. Status: active.
NSN 3990-01-508-2949 has 1 manufacturer part number on file: 752-7068422-5 (Naval Sea Systems Command).
4 possible matches (shared part number, not a government interchangeability claim): 3990-01-508-3534, 5310-01-628-2578, 5310-01-719-8074. Verify interchangeability with system specifications before substitution.
Key specifications for 752-7068422-5: Length: 2.858 INCHES NOMINAL IN; Material Document and Classification: HYTREL 7246 MFR REF SINGLE MATERIAL RESPONSE; Diameter: 2.000 INCHES MINIMUM AND 4.000 INCHES MAXIMUM IN; Special Features: OUTER DIAMETER IS 2.000 FOR 2.375 INCHES THEN IT FLARES TO 4.000 INCHES AT 13 DEGREE ANGLE; DRILLED THRU 0.749-0.751 INCH DIA IN. 5 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.