PartsTable
Technical Data Sheet
Download PDF

159673L1 — DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

159673L1: DISK,VALVE.

The DISK,VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 400 OR NICKEL ALLOY R-405, temp_rating: 28.0 FAHRENHEIT MINIMUM AND 165.0 FAHRENHEIT MAXIMUM DEGF, pressure_rating: 6000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS, outside_diameter: 0.458 INCHES MINIMUM AND 0.459 INCHES MAXIMUM IN, style_designator: POPPET, media_for_which_designed: AIR OR GAS. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-341-4451, 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
159673L1
NSN: 4820-01-341-4451
FSC: 4820 — Valves, Nonpowered
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
materialNICKEL ALLOY 400 OR NICKEL ALLOY R-405
temp_rating28.0 FAHRENHEIT MINIMUM AND 165.0 FAHRENHEIT MAXIMUM DEGF
pressure_rating6000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
outside_diameter0.458 INCHES MINIMUM AND 0.459 INCHES MAXIMUM IN
style_designatorPOPPET
media_for_which_designedAIR OR GAS
criticality_code_justificationZZZY
material_document_and_classificationQQ-N-281, CLASS A FED SPEC 1ST MATERIAL RESPONSE OR QQ-N-281, CLASS B FED SPEC 2ND MATERIAL RESPONSE
reference_number_differentiating_characteristicsQUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
NSN4820-01-341-4451
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 159673L1 · 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
•
PRESSURE RATING: 6000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
•
TEMP RATING: 28.0 FAHRENHEIT MINIMUM AND 165.0 FAHRENHEIT MAXIMUM DEGF
•
OUTSIDE DIAMETER: 0.458 INCHES MINIMUM AND 0.459 INCHES MAXIMUM IN
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
STYLE DESIGNATOR: POPPET
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281, CLASS A FED SPEC 1ST MATERIAL RESPONSE OR QQ-N-281, CLASS B FED SPEC 2ND MATERIAL RESPONSE
•
MEDIA FOR WHICH DESIGNED: AIR OR GAS
•
MATERIAL: NICKEL ALLOY 400 OR NICKEL ALLOY R-405
TECHNICAL CHARACTERISTICS
PRESSURE RATING6000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
TEMP RATING28.0 FAHRENHEIT MINIMUM AND 165.0 FAHRENHEIT MAXIMUM DEGF
OUTSIDE DIAMETER0.458 INCHES MINIMUM AND 0.459 INCHES MAXIMUM IN
CRITICALITY CODE JUSTIFICATIONZZZY
STYLE DESIGNATORPOPPET
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281, CLASS A FED SPEC 1ST MATERIAL RESPONSE OR QQ-N-281, CLASS B FED SPEC 2ND MATERIAL RESPONSE
MEDIA FOR WHICH DESIGNEDAIR OR GAS
MATERIALNICKEL ALLOY 400 OR NICKEL ALLOY R-405
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSQUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
SUBSTITUTES & CROSS-REFERENCES 8
280977 ITEM 17L1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
280977-0005-ITEM NO-17Reference document
Same NSN cross-reference
Reference document — Secondary reference
195767L1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
159673Reference document
Same NSN cross-reference
Reference document — Secondary reference
280977-0005 ITEM17Reference document
Same NSN cross-reference
Reference document — Secondary reference
280977 ITEM 17Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 159673L1?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 159673L1?
159673L1 is a DISK,VALVE.
What parts can replace 159673L1?
There are 8 known substitutes for 159673L1: 280977 ITEM 17L1, 280977-0005-ITEM NO-17, 195767L1 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 159673L1?
159673L1 is cataloged in the U.S. Government catalog under NSN 4820-01-341-4451. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 159673L1

✓ 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.