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2BA578 — STRAP,RETAINING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

2BA578: STRAP,RETAINING.

The STRAP,RETAINING is a the manufacturer industrial component. Key specifications include cushion: NOT INCLUDED, material: STEEL COMP 316 LOCATION NOT OTHERWISE SPECIFIED, mounting_pad: NOT INCLUDED, overall_width: 0.438 INCHES NOMINAL IN, overall_length: 0.806 INCHES NOMINAL IN, style_designator: STRAIGHT ARCH. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-156-5076, 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
2BA578
NSN: 5340-01-156-5076
FSC: 5340 — Hardware, Commercial
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
cushionNOT INCLUDED
materialSTEEL COMP 316 LOCATION NOT OTHERWISE SPECIFIED
mounting_padNOT INCLUDED
overall_width0.438 INCHES NOMINAL IN
overall_length0.806 INCHES NOMINAL IN
style_designatorSTRAIGHT ARCH
material_thickness0.025 INCHES NOMINAL IN
mounting_hole_size0.176 INCHES MINIMUM AND 0.182 INCHES MAXIMUM IN
inside_diameter/arch_length0.756 INCHES NOMINAL IN
distance_between_base_and_inside_of_arch0.094 INCHES NOMINAL IN
NSN5340-01-156-5076
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2BA578 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: 0.176 INCHES MINIMUM AND 0.182 INCHES MAXIMUM IN
•
MOUNTING PAD: NOT INCLUDED
•
STYLE DESIGNATOR: STRAIGHT ARCH
•
MATERIAL THICKNESS: 0.025 INCHES NOMINAL IN
•
CUSHION: NOT INCLUDED
•
DISTANCE BETWEEN BASE AND INSIDE OF ARCH: 0.094 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MOUNTING HOLE SIZE0.176 INCHES MINIMUM AND 0.182 INCHES MAXIMUM IN
MOUNTING PADNOT INCLUDED
STYLE DESIGNATORSTRAIGHT ARCH
OVERALL LENGTH0.806 INCHES NOMINAL IN
OVERALL WIDTH0.438 INCHES NOMINAL IN
MATERIAL THICKNESS0.025 INCHES NOMINAL IN
CUSHIONNOT INCLUDED
DISTANCE BETWEEN BASE AND INSIDE OF ARCH0.094 INCHES NOMINAL IN
MATERIALSTEEL COMP 316 LOCATION NOT OTHERWISE SPECIFIED
INSIDE DIAMETER/ARCH LENGTH0.756 INCHES NOMINAL IN
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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2BA578?
2BA578 is a STRAP,RETAINING.
What is the NSN for 2BA578?
2BA578 is cataloged in the U.S. Government catalog under NSN 5340-01-156-5076. 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.