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4057678 — STRAP,RETAINING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

4057678: STRAP,RETAINING.

The STRAP,RETAINING is a the manufacturer industrial component. Key specifications include cushion: NOT INCLUDED, material: ALUMINUM ALLOY 6061 LOCATION NOT OTHERWISE SPECIFIED, mounting_pad: NOT INCLUDED, overall_length: 1.024 INCHES MINIMUM AND 1.070 INCHES MAXIMUM IN, material_thickness: 0.032 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN, inside_diameter/arch_length: 0.960 INCHES MINIMUM AND 0.980 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-112-3844, 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
4057678
NSN: 5340-01-112-3844
FSC: 5340 — Hardware, Commercial
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
cushionNOT INCLUDED
materialALUMINUM ALLOY 6061 LOCATION NOT OTHERWISE SPECIFIED
mounting_padNOT INCLUDED
overall_length1.024 INCHES MINIMUM AND 1.070 INCHES MAXIMUM IN
material_thickness0.032 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
inside_diameter/arch_length0.960 INCHES MINIMUM AND 0.980 INCHES MAXIMUM IN
material_document_and_classificationAMS 4025 ASSN STD SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
distance_between_base_and_inside_of_arch0.160 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
NSN5340-01-112-3844
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4057678 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 PAD: NOT INCLUDED
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 4025 ASSN STD SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
•
MATERIAL THICKNESS: 0.032 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
•
CUSHION: NOT INCLUDED
•
DISTANCE BETWEEN BASE AND INSIDE OF ARCH: 0.160 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
•
MATERIAL: ALUMINUM ALLOY 6061 LOCATION NOT OTHERWISE SPECIFIED
•
INSIDE DIAMETER/ARCH LENGTH: 0.960 INCHES MINIMUM AND 0.980 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
MOUNTING PADNOT INCLUDED
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4025 ASSN STD SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
OVERALL LENGTH1.024 INCHES MINIMUM AND 1.070 INCHES MAXIMUM IN
MATERIAL THICKNESS0.032 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
CUSHIONNOT INCLUDED
DISTANCE BETWEEN BASE AND INSIDE OF ARCH0.160 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
MATERIALALUMINUM ALLOY 6061 LOCATION NOT OTHERWISE SPECIFIED
INSIDE DIAMETER/ARCH LENGTH0.960 INCHES MINIMUM AND 0.980 INCHES MAXIMUM 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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4057678?
4057678 is a STRAP,RETAINING.
What is the NSN for 4057678?
4057678 is cataloged in the U.S. Government catalog under NSN 5340-01-112-3844. 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.