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1977622 ITEM 12 — VALVE,BALL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

1977622 ITEM 12: VALVE,BALL.

The VALVE,BALL is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4820-01-475-2467, 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
1977622 ITEM 12
NSN: 4820-01-475-2467
FSC: 4820 — Valves, Nonpowered
CAGE: 03956 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
Part Number1977622 ITEM 12
NSN4820-01-475-2467
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1977622 ITEM 12 · 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
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 4
SD6925-1 3/8INReference document
Same NSN cross-reference
Reference document — Secondary reference
1858655-3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
3/8" 46666YBSWReference document
Same NSN cross-reference
Reference document — Secondary reference
3/8"466YBSWReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1977622 ITEM 12?
1977622 ITEM 12 is a VALVE,BALL.
What parts can replace 1977622 ITEM 12?
There are 4 known substitutes for 1977622 ITEM 12: SD6925-1 3/8IN, 1858655-3, 3/8" 46666YBSW and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1977622 ITEM 12?
1977622 ITEM 12 is cataloged in the U.S. Government catalog under NSN 4820-01-475-2467. 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.