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68B690101-129 — VALVE,RESTRICTOR CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

68B690101-129: VALVE,RESTRICTOR CHECK.

The VALVE,RESTRICTOR CHECK is a the manufacturer industrial component. Key specifications include material: STEEL COMP 630 SEAT, thread_class: 2A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: PLAIN (TUBE) ALL ENDS, style_designator: STRAIGHT THRU, thread_direction: RIGHT-HAND ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-516-1058, 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
68B690101-129
NSN: 4820-00-516-1058
FSC: 4820 — Valves, Nonpowered
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL COMP 630 SEAT
thread_class2A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_stylePLAIN (TUBE) ALL ENDS
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND ALL ENDS
aperture_diameter0.045 INCHES NOMINAL IN
mounting_positionHORIZONTAL OR VERTICAL
surface_treatmentPASSIVATE
disk_loading_methodSPRING
flow_control_devicePOPPET
nominal_thread_size0.562 INCHES FIRST END IN
NSN4820-00-516-1058
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 68B690101-129 · 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
SUBSTITUTES & CROSS-REFERENCES 4
9R3300Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
7M844Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
7M844-3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5590-129Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 68B690101-129?
68B690101-129 is a VALVE,RESTRICTOR CHECK.
What parts can replace 68B690101-129?
There are 4 known substitutes for 68B690101-129: 9R3300, 7M844, 7M844-3 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 68B690101-129?
68B690101-129 is cataloged in the U.S. Government catalog under NSN 4820-00-516-1058. 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.