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7M657-1 — VALVE,SHUTTLE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

7M657-1: VALVE,SHUTTLE.

The VALVE,SHUTTLE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, corner_shape: CHAMFERED INSIDE RIGHT CORNER, overall_length: 2.4960 INCHES NOMINAL IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 0.6930 INCHES NOMINAL IN, body_outside_diameter: 1.1830 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-609-9926, 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
7M657-1
NSN: 4820-00-609-9926
NIINs: 006099926, 009480246
FSC: 4820 — Valves, Nonpowered
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
corner_shapeCHAMFERED INSIDE RIGHT CORNER
overall_length2.4960 INCHES NOMINAL IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter0.6930 INCHES NOMINAL IN
body_outside_diameter1.1830 INCHES NOMINAL IN
NSN4820-00-609-9926
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 7M657-1 · 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: PISTON
•
FURNISHED ITEMS AND QUANTITY: 2 NUT
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CONNECTION STYLE: PLAIN,OPTIONAL END(PIPE) ALL ENDS
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CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
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STYLE DESIGNATOR: CROSS W/OFFSET
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OPERATING PRESSURE: 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
OFFSET DISTANCE: 0.688 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND ALL ENDS
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEPISTON
FURNISHED ITEMS AND QUANTITY2 NUT
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) ALL ENDS
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
STYLE DESIGNATORCROSS W/OFFSET
OPERATING PRESSURE125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
OFFSET DISTANCE0.688 INCHES IN
THREAD DIRECTIONRIGHT-HAND ALL ENDS
NOMINAL THREAD SIZE0.125 INCHES ALL ENDS IN
MAXIMUM OPERATING TEMP180.0 FAHRENHEIT SINGLE RESPONSE DEGF
SUBSTITUTES & CROSS-REFERENCES 2
4820PL1443398Reference document
Same NSN cross-reference
Reference document — Informative reference only
7M657Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7M657-1?
7M657-1 is a VALVE,SHUTTLE.
What parts can replace 7M657-1?
There are 2 known substitutes for 7M657-1: 4820PL1443398, 7M657. Substitute compatibility should be verified for your specific system.
What is the NSN for 7M657-1?
7M657-1 is cataloged in the U.S. Government catalog under NSN 4820-00-609-9926. 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.