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A3019801 — STEP,FOLDING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A3019801: STEP,FOLDING.

The STEP,FOLDING is a the manufacturer industrial component. Key specifications include material: STEEL, overall_width: 4.380 INCHES NOMINAL IN, overall_height: 4.630 INCHES NOMINAL IN, surface_treatment: CADMIUM AND PAINT, end_item_identification: NSN 5411-01-436-3326 SHELTER, NONEXPANDABLE, LIGHTWEIGHT, MULTIPURPOSE, part_name_assigned_by_controlling_agency: FOLDING STEP ASSEMBLY (PAINTED OLIVE DRAB). This part is cataloged in the U.S.

Government catalog under NSN 5340-01-495-2012, 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
A3019801
NSN: 5340-01-495-2012
FSC: 5340 — Hardware, Commercial
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
materialSTEEL
overall_width4.380 INCHES NOMINAL IN
overall_height4.630 INCHES NOMINAL IN
surface_treatmentCADMIUM AND PAINT
end_item_identificationNSN 5411-01-436-3326 SHELTER, NONEXPANDABLE, LIGHTWEIGHT, MULTIPURPOSE
part_name_assigned_by_controlling_agencyFOLDING STEP ASSEMBLY (PAINTED OLIVE DRAB)
NSN5340-01-495-2012
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A3019801 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
•
COLOR: OLIVE DRAB
•
SURFACE TREATMENT: CADMIUM AND PAINT
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT4.630 INCHES NOMINAL IN
OVERALL WIDTH4.380 INCHES NOMINAL IN
COLOROLIVE DRAB
SPECIAL FEATURESITEM IS STEP WITH BRACKET ONLY OF CADMIUM PLATED FORGED STEEL & THAT HAS BEEN PAINTED OLIVE DRAB;PER SPEC CONTROL DWG A3020690, THE -003 IS AN ALTERED ITEM MADE FROM THE -101 AND THEN PAINTED OLIVE DRAB IAW A3020600, TYPE XII; THE -101 OFF DWG A3020690 IS SUPPLIED BY CAGE 19220 P/N 1-575709-50-19 WITH 19 MEANING CHROMATE COATING ASTM B766, QQP 416 T-2 C-2; NHA IS CAGE 80063 P/N A3029801 REFLECTOR ASSEMBLY; ITEM MOUNTS BY 2 BOLT HOLES ON BRACKET; STEP FOLDS 90 DEGREES UPWARD INTO CLOSED POSITION
SURFACE TREATMENTCADMIUM AND PAINT
PART NAME ASSIGNED BY CONTROLLING AGENCYFOLDING STEP ASSEMBLY (PAINTED OLIVE DRAB)
END ITEM IDENTIFICATIONNSN 5411-01-436-3326 SHELTER, NONEXPANDABLE, LIGHTWEIGHT, MULTIPURPOSE
MATERIALSTEEL
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 3
A3019801 FIND NO 49Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
A3020690-003Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
A3020690Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
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 A3019801?
A3019801 is a STEP,FOLDING.
What parts can replace A3019801?
There are 3 known substitutes for A3019801: A3019801 FIND NO 49, A3020690-003, A3020690. Substitute compatibility should be verified for your specific system.
What is the NSN for A3019801?
A3019801 is cataloged in the U.S. Government catalog under NSN 5340-01-495-2012. This indicates validated use in U.S. government and defense supply chains.
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