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376549-1 — CATCH,TOWBAR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

376549-1: CATCH,TOWBAR.

The CATCH,TOWBAR is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024, hole_diameter: 0.198 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN, outside_diameter: 1.810 INCHES NOMINAL IN, special_features: CENTER HOLE NO. 10 DIA TOOLHOLE, bolt_circle_diameter: 1.190 INCHES NOMINAL IN, material_document_and_classification: QQ-A-362,T3 FED SPEC SINGLE MATERIAL RESPONSE.

This part is cataloged in the U.S. Government catalog under NSN 5340-00-497-3333, 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
376549-1
NSN: 5340-00-497-3333
NIINs: 004973333, 010622843
FSC: 5340 — Hardware, Commercial
CAGE: 76823 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN IS DIV NORTHROP GRUMMAN AERONAUTICS SYSTEMS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024
hole_diameter0.198 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN
outside_diameter1.810 INCHES NOMINAL IN
special_featuresCENTER HOLE NO. 10 DIA TOOLHOLE
bolt_hole_quantity2
bolt_circle_diameter1.190 INCHES NOMINAL IN
material_document_and_classificationQQ-A-362,T3 FED SPEC SINGLE MATERIAL RESPONSE
NSN5340-00-497-3333
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 376549-1 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
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 376549-1?
376549-1 is a CATCH,TOWBAR.
What is the NSN for 376549-1?
376549-1 is cataloged in the U.S. Government catalog under NSN 5340-00-497-3333. 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.