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7976403 — Technical Data Sheet

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— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The COCK,SHUTOFF,SCREW STEM is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN, OPTIONAL END (PIPE) ALL ENDS, style_designator: STRAIGHT THRU, thread_direction: RIGHT-HAND ALL ENDS, flow_control_device: PLUG. This part is cataloged in the Federal Logistics Information System under NSN 4820-00-541-3541, 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
7976403
NSN: 4820-00-541-3541
FSC: 4820
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN, OPTIONAL END (PIPE) ALL ENDS
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND ALL ENDS
flow_control_devicePLUG
nominal_thread_size0.125 INCHES ALL ENDS IN
valve_operation_methodMANUAL
end_item_identificationGRUMMAN AEROSPACE A10 AIRCRAFT
thread_series_designatorNPT ALL ENDS
nominal_pipe_size_accommodated0.125 INCHES FIRST END IN
NSN4820-00-541-3541
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 7976403 · 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
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
STYLE DESIGNATOR: STRAIGHT THRU
•
CONNECTION STYLE: PLAIN, OPTIONAL END (PIPE) ALL ENDS
•
THREAD DIRECTION: RIGHT-HAND ALL ENDS
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
NOMINAL THREAD SIZE: 0.125 INCHES ALL ENDS IN
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.125 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS
THREAD SERIES DESIGNATORNPT ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU
CONNECTION STYLEPLAIN, OPTIONAL END (PIPE) ALL ENDS
END ITEM IDENTIFICATIONGRUMMAN AEROSPACE A10 AIRCRAFT
THREAD DIRECTIONRIGHT-HAND ALL ENDS
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
NOMINAL THREAD SIZE0.125 INCHES ALL ENDS IN
NOMINAL PIPE SIZE ACCOMMODATED0.125 INCHES FIRST END IN
VALVE OPERATION METHODMANUAL
FLOW CONTROL DEVICEPLUG
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
87446InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
PK55Z10-6InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MS24621-42InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
0920988-2InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
4820005413541InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
62-E-2307 PC 2InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7976403?
7976403 is a COCK,SHUTOFF,SCREW STEM.
What parts can replace 7976403?
There are 10 known substitutes for 7976403: 87446, PK55Z10-6, MS24621-42 and 7 more. Substitute compatibility should be verified for your specific system.
Is 7976403 still available?
7976403 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: October 2026