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6439734 — BRACKET,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

6439734: BRACKET,MOUNTING.

The BRACKET,MOUNTING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061, overall_width: 0.153 INCHES NOMINAL IN, overall_height: 1.100 INCHES NOMINAL IN, overall_length: 2.900 INCHES NOMINAL IN, surface_treatment: CHROMATE, mounting_hole_diameter: 0.173 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-467-2387, 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
6439734
NSN: 5340-01-467-2387
FSC: 5340 — Hardware, Commercial
CAGE: 3U331 — RAYTHEON COMPANY DBA RAYTHEON (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061
overall_width0.153 INCHES NOMINAL IN
overall_height1.100 INCHES NOMINAL IN
overall_length2.900 INCHES NOMINAL IN
surface_treatmentCHROMATE
mounting_hole_diameter0.173 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN
mounting_hole_quantity2
end_item_identification1920012987790
material_document_and_classificationQQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE
surface_treatment_document_and_classificationC-5541 MIL SPEC SINGLE TREATMENT RESPONSE
NSN5340-01-467-2387
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6439734 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
•
MOUNTING HOLE QUANTITY: 2
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: C-5541 MIL SPEC SINGLE TREATMENT RESPONSE
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE
•
MOUNTING HOLE DIAMETER: 0.173 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CHROMATE
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY2
OVERALL HEIGHT1.100 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONC-5541 MIL SPEC SINGLE TREATMENT RESPONSE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE
MOUNTING HOLE DIAMETER0.173 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN
OVERALL LENGTH2.900 INCHES NOMINAL IN
OVERALL WIDTH0.153 INCHES NOMINAL IN
SURFACE TREATMENTCHROMATE
END ITEM IDENTIFICATION1920012987790
MATERIALALUMINUM ALLOY 6061
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES 1
12991289Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 6439734?
6439734 is a BRACKET,MOUNTING.
What parts can replace 6439734?
There is 1 known substitute for 6439734: 12991289. Substitute compatibility should be verified for your specific system.
What is the NSN for 6439734?
6439734 is cataloged in the U.S. Government catalog under NSN 5340-01-467-2387. 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.