NSN 4820-01-416-5650 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-416-5650. Manufacturer of record part number: SS-R3A-K5.
Nearby stock numbers← 4820-01-416-5644 Valve, Relief, Pressure and Temper
·
4820-01-416-5651 Valve, Relief, Pressure and Temper →
4820-01-416-5650 — Valves, Nonpowered
Features
Parts Kit,safety Relief Valve — FSC 4820
Criticality Code Justification: FEAT
End Item Name: MK 3 MOD 0 LIGHT WEIGHT DIVE SYS
2 manufacturer part numbers on file
Manufacturer of record: Swagelok Co
Identification
NSN: 4820-01-416-5650
NIIN: 014165650
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: SS-R3A-K5
Manufacturer: Swagelok Co
General Description
The Parts Kit,safety Relief Valve, cataloged under National Stock Number 4820-01-416-5650, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Swagelok Co. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file
Frequently Asked Questions
What is NSN 4820-01-416-5650?
NSN 4820-01-416-5650 is a Parts Kit,safety Relief Valve, manufactured by Swagelok Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-416-5650?
NSN 4820-01-416-5650 has 2 manufacturer part numbers on file: SS-R3A-K5 (Swagelok Co), 6314368 (Naval Sea Systems Command).
What are the specifications of SS-R3A-K5?
Key specifications for SS-R3A-K5: Criticality Code Justification: FEAT; End Item Name: MK 3 MOD 0 LIGHT WEIGHT DIVE SYS; Special Features: UNDERWATER LIFE SUPPORT IAW NAVSEA INSTRUCTION 10560.2B. 2 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-416-5650 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.