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7986778 — STRAP,RETAINING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7986778: STRAP,RETAINING.

The STRAP,RETAINING is a the manufacturer industrial component. Key specifications include cushion: NOT INCLUDED, material: ALUMINUM ALLOY LOCATION NOT OTHERWISE SPECIFIED, mounting_pad: NOT INCLUDED, overall_width: 0.610 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN, overall_length: 1.610 INCHES MINIMUM AND 1.630 INCHES MAXIMUM IN, style_designator: CURVED ARCH. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-947-8640, 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
7986778
NSN: 5340-00-947-8640
FSC: 5340 — Hardware, Commercial
CAGE: 19206 — ARMY, UNITED STATES DEPARTMENT OF THE DBA WATERVLIET ARSENAL DIV BUSINESS DEVELOPMENT (USA)
SPECIFICATIONS
cushionNOT INCLUDED
materialALUMINUM ALLOY LOCATION NOT OTHERWISE SPECIFIED
mounting_padNOT INCLUDED
overall_width0.610 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
overall_length1.610 INCHES MINIMUM AND 1.630 INCHES MAXIMUM IN
style_designatorCURVED ARCH
surface_treatmentANODIZE
material_thickness0.088 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN
mounting_hole_size0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
inside_diameter/arch_length0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
distance_between_mounting_hole_centers1.370 INCHES MINIMUM AND 1.380 INCHES MAXIMUM IN
distance_between_base_and_inside_of_arch0.420 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
NSN5340-00-947-8640
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7986778 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 SIZE: 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
•
DISTANCE BETWEEN MOUNTING HOLE CENTERS: 1.370 INCHES MINIMUM AND 1.380 INCHES MAXIMUM IN
•
MOUNTING PAD: NOT INCLUDED
•
STYLE DESIGNATOR: CURVED ARCH
•
MATERIAL THICKNESS: 0.088 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN
•
CUSHION: NOT INCLUDED
TECHNICAL CHARACTERISTICS
MOUNTING HOLE SIZE0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
DISTANCE BETWEEN MOUNTING HOLE CENTERS1.370 INCHES MINIMUM AND 1.380 INCHES MAXIMUM IN
MOUNTING PADNOT INCLUDED
STYLE DESIGNATORCURVED ARCH
OVERALL LENGTH1.610 INCHES MINIMUM AND 1.630 INCHES MAXIMUM IN
OVERALL WIDTH0.610 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
MATERIAL THICKNESS0.088 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN
CUSHIONNOT INCLUDED
DISTANCE BETWEEN BASE AND INSIDE OF ARCH0.420 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
SURFACE TREATMENTANODIZE
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

No substitute or cross-reference records for this part.

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 7986778?
7986778 is a STRAP,RETAINING.
What is the NSN for 7986778?
7986778 is cataloged in the U.S. Government catalog under NSN 5340-00-947-8640. 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.