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01W157-213 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

01W157-213: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, flange_diameter: 0.862 INCHES MINIMUM AND 0.867 INCHES MAXIMUM IN, seat_angle_in_deg: 59.000 MINIMUM AND 61.000 MAXIMUM, under_flange_height: 0.305 INCHES MINIMUM AND 0.325 INCHES MAXIMUM IN, body_inside_diameter: 0.528 INCHES MINIMUM AND 0.534 INCHES MAXIMUM IN, body_outside_diameter: 0.745 INCHES MINIMUM AND 0.748 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 4810-00-995-6938, 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
01W157-213
NSN: 4810-00-995-6938
FSC: 4810 — Valves, Powered
CAGE: 00736 — FALLS FILTRATION TECHNOLOGIES, INC. (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
flange_diameter0.862 INCHES MINIMUM AND 0.867 INCHES MAXIMUM IN
seat_angle_in_deg59.000 MINIMUM AND 61.000 MAXIMUM
under_flange_height0.305 INCHES MINIMUM AND 0.325 INCHES MAXIMUM IN
body_inside_diameter0.528 INCHES MINIMUM AND 0.534 INCHES MAXIMUM IN
body_outside_diameter0.745 INCHES MINIMUM AND 0.748 INCHES MAXIMUM IN
seating_surface_shapeANGULAR
seal_accommodation_typeGROOVED
flange_seat_to_disk_end_height0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
material_document_and_classificationSAE30303 ASSN STD SINGLE MATERIAL RESPONSE OR AISI303 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN4810-00-995-6938
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 01W157-213 · 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: 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
•
FLANGE DIAMETER: 0.862 INCHES MINIMUM AND 0.867 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 0.745 INCHES MINIMUM AND 0.748 INCHES MAXIMUM IN
•
SEAL ACCOMMODATION TYPE: GROOVED
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE30303 ASSN STD SINGLE MATERIAL RESPONSE OR AISI303 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
BODY INSIDE DIAMETER: 0.528 INCHES MINIMUM AND 0.534 INCHES MAXIMUM IN
•
UNDER FLANGE HEIGHT: 0.305 INCHES MINIMUM AND 0.325 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 303 OVERALL
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
FLANGE DIAMETER0.862 INCHES MINIMUM AND 0.867 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER0.745 INCHES MINIMUM AND 0.748 INCHES MAXIMUM IN
SEAL ACCOMMODATION TYPEGROOVED
MATERIAL DOCUMENT AND CLASSIFICATIONSAE30303 ASSN STD SINGLE MATERIAL RESPONSE OR AISI303 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
BODY INSIDE DIAMETER0.528 INCHES MINIMUM AND 0.534 INCHES MAXIMUM IN
UNDER FLANGE HEIGHT0.305 INCHES MINIMUM AND 0.325 INCHES MAXIMUM IN
MATERIALSTEEL COMP 303 OVERALL
SEAT ANGLE IN DEG59.000 MINIMUM AND 61.000 MAXIMUM
SEATING SURFACE SHAPEANGULAR
OTHER ITEMS IN FSC 4810 — Valves, Powered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4810-00-001-1247 4810-00-001-4499 4810-00-001-4531 4810-00-001-4532 4810-00-001-4554 4810-00-001-4555 4810-00-001-4556 4810-00-001-4611
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 01W157-213?
01W157-213 is a SEAT,VALVE.
What is the NSN for 01W157-213?
01W157-213 is cataloged in the U.S. Government catalog under NSN 4810-00-995-6938. 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.