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Technical Data Sheet
PartsTable / COMPONENT / 9958
9958 ✓ 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 THINNER,PAINT PRODUCTS is a the manufacturer industrial component. Key specifications include color: YELLOW, material: IRON, body_width: 0.402 INCHES MAXIMUM IN, body_length: 0.820 INCHES MINIMUM AND 0.840 INCHES MAXIMUM IN, thread_class: 3A SINGLE THREADED PORTION A, bore_diameter: 0.3450 INCHES MINIMUM AND 0.3460 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-00-218-6077, 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
9958
NSN: 4810-00-218-6077
FSC: 4810
CAGE: 90099 — NORTHROP GRUMMAN SYSTEMS CORPORATION DIV MARINE SYSTEMS (USA)
SPECIFICATIONS
colorYELLOW
materialIRON
body_width0.402 INCHES MAXIMUM IN
body_length0.820 INCHES MINIMUM AND 0.840 INCHES MAXIMUM IN
thread_class3A SINGLE THREADED PORTION A
bore_diameter0.3450 INCHES MINIMUM AND 0.3460 INCHES MAXIMUM IN
overall_width0.435 INCHES MAXIMUM IN
thread_length0.750 INCHES NOMINAL SINGLE THREADED PORTION IN
body_thickness0.150 INCHES MAXIMUM IN
inclosure_typeFULLY INCLOSED
overall_length1.813 INCHES NOMINAL IN
aa_end_diameter0.469 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN
NSN4810-00-218-6077
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 9958 · 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
•
FLANGE DIAMETER: 2.125 INCHES NOMINAL IN
•
MATERIAL: COBALT ALLOY SEAT
•
SEATING SURFACE SHAPE: ANGULAR
•
NOMINAL THREAD SIZE: 1.750 INCHES SINGLE THREADED PORTION IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-853,CLASS 3,TYPE A MIL SPEC SINGLE MATERIAL RESPONSE BODY
•
STYLE DESIGNATOR: THREADED FLANGED
•
HARDNESS RATING: 202.0 BRINELL STANDARD MINIMUM BODY
•
THREAD SERIES DESIGNATOR: UN SINGLE THREADED PORTION
TECHNICAL CHARACTERISTICS (FLIS)
FLANGE DIAMETER2.125 INCHES NOMINAL IN
MATERIALCOBALT ALLOY SEAT
SEATING SURFACE SHAPEANGULAR
NOMINAL THREAD SIZE1.750 INCHES SINGLE THREADED PORTION IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-853,CLASS 3,TYPE A MIL SPEC SINGLE MATERIAL RESPONSE BODY
STYLE DESIGNATORTHREADED FLANGED
HARDNESS RATING202.0 BRINELL STANDARD MINIMUM BODY
THREAD SERIES DESIGNATORUN SINGLE THREADED PORTION
THREAD CLASS3A SINGLE THREADED PORTION A
THREAD LENGTH0.750 INCHES NOMINAL SINGLE THREADED PORTION IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
712731-7Interchangeable
interchangeable cross-reference
interchangeable
99-58Interchangeable
interchangeable cross-reference
interchangeable
K1011-7Interchangeable
interchangeable cross-reference
interchangeable
JHP110-30Interchangeable
interchangeable cross-reference
interchangeable
CFR40114Interchangeable
interchangeable cross-reference
interchangeable
PEI 7976Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 9958?
9958 is a THINNER,PAINT PRODUCTS.
What parts can replace 9958?
There are 17 known substitutes for 9958: 712731-7, 99-58, K1011-7 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 9958?
9958 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-00-218-6077. 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