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AT70857 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

AT70857: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: STEEL BODY, disk_loading_method: SPRING, flow_control_device: DISK, end_item_identification: DEERE AND COMPANY RUBBER TIRE WHEEL LOADER MODEL NO. 844, media_for_which_designed: OIL, HYDRAULIC SINGLE RESPONSE, adjustable_pressure_range: +2500.0 TO 2725.0 POUNDS PER SQUARE INCH LBS.

This part is cataloged in the U.S. Government catalog under NSN 4820-01-313-2113, 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
AT70857
NSN: 4820-01-313-2113
FSC: 4820 — Valves, Nonpowered
CAGE: 75755 — DEERE & COMPANY DBA DEERE JOHN CO (USA)
SPECIFICATIONS
materialSTEEL BODY
disk_loading_methodSPRING
flow_control_deviceDISK
end_item_identificationDEERE AND COMPANY RUBBER TIRE WHEEL LOADER MODEL NO. 844
media_for_which_designedOIL, HYDRAULIC SINGLE RESPONSE
adjustable_pressure_range+2500.0 TO 2725.0 POUNDS PER SQUARE INCH LBS
NSN4820-01-313-2113
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: AT70857 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FLOW CONTROL DEVICE: DISK
•
ADJUSTABLE PRESSURE RANGE: +2500.0 TO 2725.0 POUNDS PER SQUARE INCH LBS
•
DISK LOADING METHOD: SPRING
•
MEDIA FOR WHICH DESIGNED: OIL, HYDRAULIC SINGLE RESPONSE
•
MATERIAL: STEEL BODY
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDISK
ADJUSTABLE PRESSURE RANGE+2500.0 TO 2725.0 POUNDS PER SQUARE INCH LBS
DISK LOADING METHODSPRING
MEDIA FOR WHICH DESIGNEDOIL, HYDRAULIC SINGLE RESPONSE
END ITEM IDENTIFICATIONDEERE AND COMPANY RUBBER TIRE WHEEL LOADER MODEL NO. 844
MATERIALSTEEL BODY
SUBSTITUTES & CROSS-REFERENCES 1
A70857Reference 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 AT70857?
AT70857 is a VALVE,SAFETY RELIEF.
What parts can replace AT70857?
There is 1 known substitute for AT70857: A70857. Substitute compatibility should be verified for your specific system.
What is the NSN for AT70857?
AT70857 is cataloged in the U.S. Government catalog under NSN 4820-01-313-2113. 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.