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321016001 — PARTS KIT,DIAPHRAGM REPLACEMENT

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

321016001: PARTS KIT,DIAPHRAGM REPLACEMENT.

PARTS KIT,DIAPHRAGM REPLACEMENT. Key specifications include component_quantity: 41. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-142-4158, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
321016001
NSN: 4820-01-142-4158
FSC: 4820 — Valves, Nonpowered
CAGE: 54611 — DIVING UNLIMITED INTERNATIONAL INC (USA)
SPECIFICATIONS
component_quantity41
nonsupply_items_and_quantities54611 D1018 DIAPHRAGM 3,54611 D1020 SEAT 6,54611 D1021 VALVE 6,54611 D1022 RING 6,54611 302SS SPRING 6,54611 D1023 RETAINER 6,54611 D1035 O-RING 6,54611 D1073 O-RING 1,54611 D1074 O-RING 1
NSN4820-01-142-4158
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 321016001 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
COMPONENT QUANTITY: 41
•
NONSUPPLY ITEMS AND QUANTITIES: 54611 D1018 DIAPHRAGM 3,54611 D1020 SEAT 6,54611 D1021 VALVE 6,54611 D1022 RING 6,54611 302SS SPRING 6,54611 D1023 RETAINER 6,54611 D1035 O-RING 6,54611 D1073 O-RING 1,54611 D1074 O-RING 1
TECHNICAL CHARACTERISTICS
COMPONENT QUANTITY41
NONSUPPLY ITEMS AND QUANTITIES54611 D1018 DIAPHRAGM 3,54611 D1020 SEAT 6,54611 D1021 VALVE 6,54611 D1022 RING 6,54611 302SS SPRING 6,54611 D1023 RETAINER 6,54611 D1035 O-RING 6,54611 D1073 O-RING 1,54611 D1074 O-RING 1
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 321016001?
321016001 is a PARTS KIT,DIAPHRAGM REPLACEMENT.
What is the NSN for 321016001?
321016001 is cataloged in the U.S. Government catalog under NSN 4820-01-142-4158. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.