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667170 ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The SEMICONDUCTOR DEVICE,DIODE is a the manufacturer industrial component. Key specifications include color: YELLOW, author: SCIENTIFIC EQUIP. MFG CORP, material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL, price_list: NOT INCLUDED, matrix_band: NOT INCLUDED, temp_rating: -20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-287-2871, 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
667170
NSN: 4820-00-287-2871
FSC: 4820
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
colorYELLOW
authorSCIENTIFIC EQUIP. MFG CORP
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
price_listNOT INCLUDED
matrix_bandNOT INCLUDED
temp_rating-20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
document_titleINSTRUCTIONS FOR THE OPERATION AND MAINTENANCE OF THE HYPODERMIC INJECTION APPARATUS,JET AUTOMATIC
hardness_rating65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL
operating_mediumFUEL, AROMATIC
outside_diameter2.131 INCHES NOMINAL IN
spare_parts_listINCLUDED
special_featuresCLEAR - TASTELESS; STAIN-RESISTANT; CLOSED; NO SPACING BETWEEN RINGS; CORRECTS IMPROPER SPACING OF THE TEETH; UNIT QTY 3 SPOOLS; 39.3 IN. EACH IN
NSN4820-00-287-2871
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 667170 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
173TInterchangeable
interchangeable cross-reference
interchangeable
CM1526Interchangeable
interchangeable cross-reference
interchangeable
37447-6Interchangeable
interchangeable cross-reference
interchangeable
262-2684-000Interchangeable
interchangeable cross-reference
interchangeable
BEP62RBLInterchangeable
interchangeable cross-reference
interchangeable
SS77R4XR3CW9Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 667170?
667170 is a SEMICONDUCTOR DEVICE,DIODE.
What parts can replace 667170?
There are 18 known substitutes for 667170: 173T, CM1526, 37447-6 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 667170?
667170 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-287-2871. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026