The Valve,ball, cataloged under National Stock Number 4820-01-720-0988, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Ham-Let U S a Inc. Government technical data includes 8 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-720-0988 |
| Primary Part Number | H6800SSL1/4CMA |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Ham-Let U S a Inc |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 HANDLE |
| Connection Type | UNTHREADED INTERNAL TUBE ALL ENDS |
| Style Designator | ANGLE |
| Second Connection Face to Centerline Distance | 1.65 INCHES IN |
| First Connection Face to Centerline Distance | 1.76 INCHES IN |
| Material | STEEL COMP 316 BODY |
| Material | PLASTIC POLYCHLOROTRIFLUOROETHYLENE SEAT |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| H6800SSL1/4CMA PRIMARY | Ham-Let U S a Inc (USA) |
| H6800SSL1/4CMA | Ham-Let Usa, Inc. Dba Hamlet Valves & Fittings (USA) |
| Reference | Meaning |
|---|---|
| 7093107/REV B ITEM 10 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4820-01-720-0988 is a Valve,ball, manufactured by Ham-Let U S a Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-720-0988 has 2 manufacturer part numbers on file: H6800SSL1/4CMA (Ham-Let U S a Inc), H6800SSL1/4CMA (Ham-Let Usa, Inc. Dba Hamlet Valves & Fittings).
Key specifications for H6800SSL1/4CMA: Furnished Items and Quantity: 1 HANDLE; Connection Type: UNTHREADED INTERNAL TUBE ALL ENDS; Style Designator: ANGLE; Second Connection Face to Centerline Distance: 1.65 INCHES IN. 8 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.