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540-122 — FLANGE,GLAND,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

540-122: FLANGE,GLAND,VALVE.

The FLANGE,GLAND,VALVE is a the manufacturer industrial component. Key specifications include flange_shape: OVAL, end_item_identification: EXHAUST FLANGE,CHROME, part_name_assigned_by_controlling_agency: FLANGE,GLAND,VALVE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-690-4743, 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
540-122
NSN: 4820-01-690-4743
FSC: 4820 — Valves, Nonpowered
CAGE: 58366 — KIRBY MORGAN DIVE SYSTEMS INC (USA)
SPECIFICATIONS
flange_shapeOVAL
end_item_identificationEXHAUST FLANGE,CHROME
part_name_assigned_by_controlling_agencyFLANGE,GLAND,VALVE
NSN4820-01-690-4743
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 540-122 · 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
•
FLANGE SHAPE: OVAL
TECHNICAL CHARACTERISTICS
FLANGE SHAPEOVAL
PART NAME ASSIGNED BY CONTROLLING AGENCYFLANGE,GLAND,VALVE
END ITEM IDENTIFICATIONEXHAUST FLANGE,CHROME
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 1
4820PL2079523Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 540-122?
540-122 is a FLANGE,GLAND,VALVE.
What parts can replace 540-122?
There is 1 known substitute for 540-122: 4820PL2079523. Substitute compatibility should be verified for your specific system.
What is the NSN for 540-122?
540-122 is cataloged in the U.S. Government catalog under NSN 4820-01-690-4743. 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.