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1251570-3 — PLATE,MENDING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1251570-3: PLATE,MENDING.

The PLATE,MENDING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 1100, overall_width: 1.495 INCHES MINIMUM AND 1.505 INCHES MAXIMUM IN, overall_length: 6.933 INCHES MINIMUM AND 6.943 INCHES MAXIMUM IN, style_designator: RECTANGULAR, surface_treatment: ANODIZE, material_thickness: 0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-682-1528, 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
1251570-3
NSN: 5340-00-682-1528
FSC: 5340 — Hardware, Commercial
CAGE: 55972 — HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 1100
overall_width1.495 INCHES MINIMUM AND 1.505 INCHES MAXIMUM IN
overall_length6.933 INCHES MINIMUM AND 6.943 INCHES MAXIMUM IN
style_designatorRECTANGULAR
surface_treatmentANODIZE
material_thickness0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN
mounting_hole_diameter0.265 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
material_document_and_classificationQQ-A-250/1 FED SPEC SINGLE MATERIAL RESPONSE
NSN5340-00-682-1528
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1251570-3 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
•
STYLE DESIGNATOR: RECTANGULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/1 FED SPEC SINGLE MATERIAL RESPONSE
•
MOUNTING HOLE DIAMETER: 0.265 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN
•
SURFACE TREATMENT: ANODIZE
•
MATERIAL: ALUMINUM ALLOY 1100
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORRECTANGULAR
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/1 FED SPEC SINGLE MATERIAL RESPONSE
MOUNTING HOLE DIAMETER0.265 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
OVERALL LENGTH6.933 INCHES MINIMUM AND 6.943 INCHES MAXIMUM IN
OVERALL WIDTH1.495 INCHES MINIMUM AND 1.505 INCHES MAXIMUM IN
MATERIAL THICKNESS0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN
SURFACE TREATMENTANODIZE
MATERIALALUMINUM ALLOY 1100
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
9053593Reference 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 1251570-3?
1251570-3 is a PLATE,MENDING.
What parts can replace 1251570-3?
There is 1 known substitute for 1251570-3: 9053593. Substitute compatibility should be verified for your specific system.
What is the NSN for 1251570-3?
1251570-3 is cataloged in the U.S. Government catalog under NSN 5340-00-682-1528. 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.