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60-591PC608 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

60-591PC608: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: COBALT ALLOY FACE, flange_diameter: 2.805 INCHES MINIMUM AND 2.810 INCHES MAXIMUM IN, style_designator: PLAIN FLANGED, under_flange_height: 0.469 INCHES NOMINAL IN, body_inside_diameter: 1.306 INCHES MINIMUM AND 1.307 INCHES MAXIMUM IN, body_outside_diameter: 2.303 INCHES MINIMUM AND 2.304 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-956-1486, 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
60-591PC608
NSN: 4820-00-956-1486
FSC: 4820 — Valves, Nonpowered
CAGE: 9E328 — STEWARD MACHINE CO INC (USA)
SPECIFICATIONS
materialCOBALT ALLOY FACE
flange_diameter2.805 INCHES MINIMUM AND 2.810 INCHES MAXIMUM IN
style_designatorPLAIN FLANGED
under_flange_height0.469 INCHES NOMINAL IN
body_inside_diameter1.306 INCHES MINIMUM AND 1.307 INCHES MAXIMUM IN
body_outside_diameter2.303 INCHES MINIMUM AND 2.304 INCHES MAXIMUM IN
seating_surface_shapeFLAT
flange_seat_to_disk_end_height0.467 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN
material_document_and_classificationQQ-S-763,CLASS 410 FED SPEC SINGLE MATERIAL RESPONSE BODY
NSN4820-00-956-1486
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 60-591PC608 · 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 SEAT TO DISK END HEIGHT: 0.467 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN
•
FLANGE DIAMETER: 2.805 INCHES MINIMUM AND 2.810 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 2.303 INCHES MINIMUM AND 2.304 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: PLAIN FLANGED
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-17131,TYPE MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE FACE
•
BODY INSIDE DIAMETER: 1.306 INCHES MINIMUM AND 1.307 INCHES MAXIMUM IN
•
UNDER FLANGE HEIGHT: 0.469 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.467 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN
FLANGE DIAMETER2.805 INCHES MINIMUM AND 2.810 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER2.303 INCHES MINIMUM AND 2.304 INCHES MAXIMUM IN
STYLE DESIGNATORPLAIN FLANGED
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-17131,TYPE MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE FACE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,CLASS 410 FED SPEC SINGLE MATERIAL RESPONSE BODY
BODY INSIDE DIAMETER1.306 INCHES MINIMUM AND 1.307 INCHES MAXIMUM IN
UNDER FLANGE HEIGHT0.469 INCHES NOMINAL IN
MATERIALSTEEL BODY
MATERIALCOBALT ALLOY FACE
SUBSTITUTES & CROSS-REFERENCES 2
591-608Reference document
Same NSN cross-reference
Reference document — Secondary reference
60-773PC608Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 60-591PC608?
60-591PC608 is a SEAT,VALVE.
What parts can replace 60-591PC608?
There are 2 known substitutes for 60-591PC608: 591-608, 60-773PC608. Substitute compatibility should be verified for your specific system.
What is the NSN for 60-591PC608?
60-591PC608 is cataloged in the U.S. Government catalog under NSN 4820-00-956-1486. 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.