6581-3/4S2-2 — VALVE,RELIEF,PRESSURE AND TEMPER

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

6581-3/4S2-2: VALVE,RELIEF,PRESSURE AND TEMPER.

VALVE,RELIEF,PRESSURE AND TEMPER. Key specifications include material: STEEL COMP 4140 SEAT, body_style: STRAIGHT THRU, temp_rating: -65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF, flow_control_device: POPPET, material_document_and_classification: AISI 303S ASSN STD SINGLE MATERIAL RESPONSE STEM. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-182-0191, 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

6581-3/4S2-2

NSN: 4820-01-182-0191
FSC: 4820 — Valves, Nonpowered
CAGE: 09990 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV HYDRAULIC VALVE DIVISION (USA)

SPECIFICATIONS

material	STEEL COMP 4140 SEAT
body_style	STRAIGHT THRU
temp_rating	-65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
flow_control_device	POPPET
material_document_and_classification	AISI 303S ASSN STD SINGLE MATERIAL RESPONSE STEM
NSN	4820-01-182-0191

COMPONENT DIAGRAM

KEY FEATURES

•

FLOW CONTROL DEVICE: POPPET

•

TEMP RATING: -65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF

•

BODY STYLE: STRAIGHT THRU

•

MATERIAL DOCUMENT AND CLASSIFICATION: AISI 303S ASSN STD SINGLE MATERIAL RESPONSE STEM

•

MATERIAL: STEEL COMP 12L14 BODY

TECHNICAL CHARACTERISTICS

FLOW CONTROL DEVICE	POPPET
TEMP RATING	-65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
BODY STYLE	STRAIGHT THRU
MATERIAL DOCUMENT AND CLASSIFICATION	AISI 303S ASSN STD SINGLE MATERIAL RESPONSE STEM
MATERIAL DOCUMENT AND CLASSIFICATION	FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 12L14 ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATION	FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 4140 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 4140 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATION	FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 4140 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 4140 ASSN STD SINGLE MATERIAL RESPONSE SEAT
MATERIAL	STEEL COMP 12L14 BODY
MATERIAL	STEEL COMP 303SE STEM
MATERIAL	STEEL COMP 4140 FLOW CONTROL DEVICE

OTHER ITEMS IN FSC 4820 — Valves, Nonpowered

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230

SUBSTITUTES & CROSS-REFERENCES 2

65856-0102-1000Reference document

Same NSN cross-reference

Reference document — Secondary reference

6543D057-1Reference document

Same NSN cross-reference

Reference document — Vendor item drawing reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — critical (Q)

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FREQUENTLY ASKED QUESTIONS

What is 6581-3/4S2-2?

6581-3/4S2-2 is a VALVE,RELIEF,PRESSURE AND TEMPER.

What parts can replace 6581-3/4S2-2?

There are 2 known substitutes for 6581-3/4S2-2: 65856-0102-1000, 6543D057-1. Substitute compatibility should be verified for your specific system.

What is the NSN for 6581-3/4S2-2?

6581-3/4S2-2 is cataloged in the U.S. Government catalog under NSN 4820-01-182-0191. This indicates validated use in U.S. government and defense supply chains.

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