PartsTable
Technical Data Sheet
PartsTable / COMPONENT / C6-21-1
C6-21-1 ✓ Verified by PartsTable
— · 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

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include material: ALUMINUM ALLOY BODYALUMINUM ALLOY BODY, thread_class: 3B ALL ENDS3B ALL ENDS, connection_type: THREADED INTERNAL BOSS ALL ENDSTHREADED INTERNAL BOSS ALL ENDS, connection_style: GASKET SEAL(BOSS) ALL ENDSGASKET SEAL(BOSS) ALL ENDS, style_designator: STRAIGHT THRUSTRAIGHT THRU, thread_direction: RIGHT-HAND ALL ENDSRIGHT-HAND ALL ENDS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-00-406-3337, 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
C6-21-1
NSN: 4810-00-406-3337
FSC: 4810
CAGE: 81755 — LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN AERONAUTICS COMPANY (USA)
SPECIFICATIONS
materialALUMINUM ALLOY BODYALUMINUM ALLOY BODY
thread_class3B ALL ENDS3B ALL ENDS
connection_typeTHREADED INTERNAL BOSS ALL ENDSTHREADED INTERNAL BOSS ALL ENDS
connection_styleGASKET SEAL(BOSS) ALL ENDSGASKET SEAL(BOSS) ALL ENDS
style_designatorSTRAIGHT THRUSTRAIGHT THRU
thread_directionRIGHT-HAND ALL ENDSRIGHT-HAND ALL ENDS
mounting_positionVERTICALVERTICAL
operating_pressure6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
flow_control_devicePOPPETPOPPET
nominal_thread_size0.437 INCHES ALL ENDS0.437 INCHES ALL ENDS IN
maximum_operating_temp160.0 FAHRENHEIT SINGLE RESPONSE160.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodSOLENOIDSOLENOID
NSN4810-00-406-3337
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: C6-21-1 · 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
•
CONNECTION STYLE: GASKET SEAL(BOSS) ALL ENDSGASKET SEAL(BOSS) ALL ENDS
•
NOMINAL THREAD SIZE: 0.437 INCHES ALL ENDS0.437 INCHES ALL ENDS IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEATRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDSUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
•
STYLE DESIGNATOR: STRAIGHT THRUSTRAIGHT THRU
•
OPERATING PRESSURE: 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
VALVE OPERATION METHOD: SOLENOIDSOLENOID
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION STYLEGASKET SEAL(BOSS) ALL ENDSGASKET SEAL(BOSS) ALL ENDS
NOMINAL THREAD SIZE0.437 INCHES ALL ENDS0.437 INCHES ALL ENDS IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEATRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDSUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
STYLE DESIGNATORSTRAIGHT THRUSTRAIGHT THRU
OPERATING PRESSURE6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
VALVE OPERATION METHODSOLENOIDSOLENOID
MATERIALALUMINUM ALLOY BODYALUMINUM ALLOY BODY
THREAD DIRECTIONRIGHT-HAND ALL ENDSRIGHT-HAND ALL ENDS
FLOW CONTROL DEVICEPOPPETPOPPET
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
093824Interchangeable
interchangeable cross-reference
interchangeable
11EHW18Interchangeable
interchangeable cross-reference
interchangeable
FC975FInterchangeable
interchangeable cross-reference
interchangeable
B-82577Interchangeable
interchangeable cross-reference
interchangeable
10601Interchangeable
interchangeable cross-reference
interchangeable
10239AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy C6-21-1?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is C6-21-1?
C6-21-1 is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace C6-21-1?
There are 13 known substitutes for C6-21-1: 093824, 11EHW18, FC975F and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for C6-21-1?
C6-21-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-00-406-3337. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — C6-21-1

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026