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0437-16 — CONTROL UNIT,WELDING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

0437-16: CONTROL UNIT,WELDING.

The CONTROL UNIT,WELDING is a the manufacturer industrial component. Key specifications include special_features: COGNIZANT SERVICE - UNITED KINGDOM ROYAL AIR FORCE, end_item_identification: 4A/5320 ARGON ARC SQUAREWAVE AC/DC WELDING PLANT A. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-249-0626, 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
0437-16
NSN: 5340-01-249-0626
NIINs: 012490626, 013273995
FSC: 5340 — Hardware, Commercial
CAGE: 15819 — SINCLAIR & RUSH, INC. DBA SINCLAIR & RUSH INC (USA)
SPECIFICATIONS
special_featuresCOGNIZANT SERVICE - UNITED KINGDOM ROYAL AIR FORCE
end_item_identification4A/5320 ARGON ARC SQUAREWAVE AC/DC WELDING PLANT A
NSN5340-01-249-0626
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 0437-16 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
DESIGN TYPE: FRICTION
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.547 INCHES NOMINAL IN
•
OPENING INSIDE DIAMETER FOR WHICH DESIGNED: 0.437 INCHES NOMINAL IN
•
MATERIAL: PLASTIC VINYL
•
INSIDE DIAMETER LENGTH: 1.000 INCHES NOMINAL IN
•
ROUND CAP OUTSIDE SURFACE CONDITION: SMOOTH
TECHNICAL CHARACTERISTICS
DESIGN TYPEFRICTION
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.547 INCHES NOMINAL IN
OPENING INSIDE DIAMETER FOR WHICH DESIGNED0.437 INCHES NOMINAL IN
MATERIALPLASTIC VINYL
INSIDE DIAMETER LENGTH1.000 INCHES NOMINAL IN
ROUND CAP OUTSIDE SURFACE CONDITIONSMOOTH
SUBSTITUTES & CROSS-REFERENCES 1
740-090787Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 0437-16?
0437-16 is a CONTROL UNIT,WELDING.
What parts can replace 0437-16?
There is 1 known substitute for 0437-16: 740-090787. Substitute compatibility should be verified for your specific system.
What is the NSN for 0437-16?
0437-16 is cataloged in the U.S. Government catalog under NSN 5340-01-249-0626. 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.