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0421C20-1300-01 — VALVE,CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

0421C20-1300-01: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include valve_size: 6.00 INCHES IN, style_designator: STRAIGHT THRU, face_to_face_distance: 20.48 INCHES IN, maximum_operating_temp: 140.00 FAHRENHEIT SINGLE RESPONSE DEGF, valve_operation_method: AUTOMATIC. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-654-7138, 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
0421C20-1300-01
NSN: 4820-01-654-7138
FSC: 4820 — Valves, Nonpowered
CAGE: 20722 — THE ENTWISTLE COMPANY LLC (USA)
SPECIFICATIONS
valve_size6.00 INCHES IN
special_featuresFIRST END CONNECTION: 6.00 INCH 4-EAR FEMALE CAMLOCK X 150LB FLANGE; SECOND END CONNECTION: 6.00 INCH MALE CAMLOCK X 150LB ANSI FLANGE; LBS
style_designatorSTRAIGHT THRU
face_to_face_distance20.48 INCHES IN
maximum_operating_temp140.00 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodAUTOMATIC
NSN4820-01-654-7138
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 0421C20-1300-01 · 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
•
STYLE DESIGNATOR: STRAIGHT THRU
•
VALVE SIZE: 6.00 INCHES IN
•
MAXIMUM OPERATING TEMP: 140.00 FAHRENHEIT SINGLE RESPONSE DEGF
•
FACE TO FACE DISTANCE: 20.48 INCHES IN
•
VALVE OPERATION METHOD: AUTOMATIC
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSTRAIGHT THRU
VALVE SIZE6.00 INCHES IN
MAXIMUM OPERATING TEMP140.00 FAHRENHEIT SINGLE RESPONSE DEGF
SPECIAL FEATURESFIRST END CONNECTION: 6.00 INCH 4-EAR FEMALE CAMLOCK X 150LB FLANGE; SECOND END CONNECTION: 6.00 INCH MALE CAMLOCK X 150LB ANSI FLANGE; LBS
FACE TO FACE DISTANCE20.48 INCHES IN
VALVE OPERATION METHODAUTOMATIC
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES 1
0421C20-1300Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 0421C20-1300-01?
0421C20-1300-01 is a VALVE,CHECK.
What parts can replace 0421C20-1300-01?
There is 1 known substitute for 0421C20-1300-01: 0421C20-1300. Substitute compatibility should be verified for your specific system.
What is the NSN for 0421C20-1300-01?
0421C20-1300-01 is cataloged in the U.S. Government catalog under NSN 4820-01-654-7138. 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.