PartsTable
Technical Data Sheet

156M-1/2 — VALVE,BALL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

156M-1/2: VALVE,BALL.

The VALVE,BALL is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316 STEM, valve_size: 0.500 INCHES IN, connection_type: THREADED INTERNAL PIPE ALL ENDS, special_features: SEAT,BODY SEAL, STEM SEAL STEM BEARING MATYERIAL REINFORCED PTFE,, style_designator: STRAIGHT THRU, face_to_face_distance: 2.34 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-680-8639, 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
156M-1/2
NSN: 4820-01-680-8639
FSC: 4820 — Valves, Nonpowered
CAGE: 01029 — METSO AUTOMATION USA, INC (USA)
SPECIFICATIONS
materialSTEEL COMP 316 STEM
valve_size0.500 INCHES IN
connection_typeTHREADED INTERNAL PIPE ALL ENDS
special_featuresSEAT,BODY SEAL, STEM SEAL STEM BEARING MATYERIAL REINFORCED PTFE,
style_designatorSTRAIGHT THRU
face_to_face_distance2.34 INCHES IN
valve_operation_methodMANUAL
first_connection_face_to_centerline_distance1.17 INCHES IN
NSN4820-01-680-8639
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 156M-1/2 · 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
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
STYLE DESIGNATOR: STRAIGHT THRU
•
VALVE SIZE: 0.500 INCHES IN
•
FACE TO FACE DISTANCE: 2.34 INCHES IN
•
FIRST CONNECTION FACE TO CENTERLINE DISTANCE: 1.17 INCHES IN
•
MATERIAL: STEEL COMP 316 STEM
TECHNICAL CHARACTERISTICS
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU
VALVE SIZE0.500 INCHES IN
SPECIAL FEATURESSEAT,BODY SEAL, STEM SEAL STEM BEARING MATYERIAL REINFORCED PTFE,
FACE TO FACE DISTANCE2.34 INCHES IN
FIRST CONNECTION FACE TO CENTERLINE DISTANCE1.17 INCHES IN
MATERIALSTEEL COMP 316 STEM
MATERIALSTEEL COMP 316 OVERALL
VALVE OPERATION METHODMANUAL
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 156M-1/2?
156M-1/2 is a VALVE,BALL.
What is the NSN for 156M-1/2?
156M-1/2 is cataloged in the U.S. Government catalog under NSN 4820-01-680-8639. 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.