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C10977 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

C10977: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY, connection_type: THREADED INTERNAL PIPE SECOND END, connection_style: PLAIN (PIPE) FIRST END, special_features: VALVE IS USED AS A VACUUM RELIEF VALVE SET AT 20 INCH HG VACUUM IN, style_designator: ANGLE, thread_direction: RIGHT-HAND ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-280-2983, 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
C10977
NSN: 4820-01-280-2983
FSC: 4820 — Valves, Nonpowered
CAGE: 01343 — ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
connection_typeTHREADED INTERNAL PIPE SECOND END
connection_stylePLAIN (PIPE) FIRST END
special_featuresVALVE IS USED AS A VACUUM RELIEF VALVE SET AT 20 INCH HG VACUUM IN
style_designatorANGLE
thread_directionRIGHT-HAND ALL ENDS
flow_control_deviceBALL
nominal_thread_size0.500 INCHES FIRST END IN
valve_operation_methodAUTOMATIC
thread_series_designatorNPT SECOND END
NSN4820-01-280-2983
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: C10977 · 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
•
FLOW CONTROL DEVICE: BALL
•
CONNECTION STYLE: PLAIN,OPTIONAL END(PIPE) SECOND END
•
CONNECTION TYPE: THREADED INTERNAL PIPE SECOND END
•
STYLE DESIGNATOR: ANGLE
•
THREAD DIRECTION: RIGHT-HAND ALL ENDS
•
NOMINAL THREAD SIZE: 0.750 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEBALL
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) SECOND END
CONNECTION STYLEPLAIN (PIPE) FIRST END
CONNECTION TYPETHREADED INTERNAL PIPE SECOND END
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
STYLE DESIGNATORANGLE
THREAD DIRECTIONRIGHT-HAND ALL ENDS
NOMINAL THREAD SIZE0.750 INCHES SECOND END IN
NOMINAL THREAD SIZE0.500 INCHES FIRST END IN
SPECIAL FEATURESVALVE IS USED AS A VACUUM RELIEF VALVE SET AT 20 INCH HG VACUUM IN
SUBSTITUTES & CROSS-REFERENCES 1
2503156Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 C10977?
C10977 is a VALVE,SAFETY RELIEF.
What parts can replace C10977?
There is 1 known substitute for C10977: 2503156. Substitute compatibility should be verified for your specific system.
What is the NSN for C10977?
C10977 is cataloged in the U.S. Government catalog under NSN 4820-01-280-2983. This indicates validated use in U.S. government and defense supply chains.
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