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803-5001003-N312 — VALVE,BALL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

803-5001003-N312: VALVE,BALL.

The VALVE,BALL is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE SEAT, connection_type: UNTHREADED INTERNAL PIPE ALL ENDS, connection_style: SOCKET ALL ENDS, style_designator: CROSS, valve_operation_method: MANUAL, end_item_identification: AVENGER CLASS MCM. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-437-8008, 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
803-5001003-N312
NSN: 4820-01-437-8008
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE SEAT
connection_typeUNTHREADED INTERNAL PIPE ALL ENDS
connection_styleSOCKET ALL ENDS
style_designatorCROSS
valve_operation_methodMANUAL
end_item_identificationAVENGER CLASS MCM
nominal_pipe_size_accommodated0.500 INCHES ALL ENDS IN
NSN4820-01-437-8008
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 803-5001003-N312 · 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
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.500 INCHES ALL ENDS IN
•
CONNECTION STYLE: SOCKET ALL ENDS
•
CONNECTION TYPE: UNTHREADED INTERNAL PIPE ALL ENDS
•
STYLE DESIGNATOR: CROSS
•
MATERIAL: NICKEL ALLOY STEM
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE ACCOMMODATED0.500 INCHES ALL ENDS IN
CONNECTION STYLESOCKET ALL ENDS
CONNECTION TYPEUNTHREADED INTERNAL PIPE ALL ENDS
STYLE DESIGNATORCROSS
END ITEM IDENTIFICATIONAVENGER CLASS MCM
MATERIALNICKEL ALLOY STEM
MATERIALCOPPER ALLOY 964 BODY
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE SEAT
MATERIALSTEEL COMP 316 FLOW CONTROL DEVICE
VALVE OPERATION METHODMANUAL
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
5001003Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 803-5001003-N312?
803-5001003-N312 is a VALVE,BALL.
What parts can replace 803-5001003-N312?
There is 1 known substitute for 803-5001003-N312: 5001003. Substitute compatibility should be verified for your specific system.
What is the NSN for 803-5001003-N312?
803-5001003-N312 is cataloged in the U.S. Government catalog under NSN 4820-01-437-8008. 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.