The Guard and Pin, cataloged under National Stock Number 4310-01-111-6429, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Atlas Copco Holyoke Inc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Guard and Pin |
| FSC / FSG | 4310 — Compressors and Vacuum Pumps (FSG 43) |
| Manufacturers | Atlas Copco Holyoke Inc (CAGE 59379) |
| Parameter | Value |
|---|---|
| NSN | 4310-01-111-6429 |
| Primary Part Number | GRD-752 |
| Item Name | Guard and Pin |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Atlas Copco Holyoke Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| GRD-752 PRIMARY | Atlas Copco Holyoke Inc (USA) |
| HL-21144 PIECE 112 | Atlas Copco Holyoke Inc (USA) |
| Reference | Meaning |
|---|---|
| GRD-752 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| HL-21144 PIECE 112 | 5/9 Secondary reference U.S. Government activity |
| GRD-752 | 5/9 Secondary reference U.S. Government activity |
NSN 4310-01-111-6429 is a Guard and Pin, manufactured by Atlas Copco Holyoke Inc, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-111-6429 has 2 manufacturer part numbers on file: GRD-752 (Atlas Copco Holyoke Inc), HL-21144 PIECE 112 (Atlas Copco Holyoke Inc).
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.