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256123 PIECE 6 — TAILPEACE,BALL VALV

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

256123 PIECE 6: TAILPEACE,BALL VALV.

The TAILPEACE,BALL VALV is a the manufacturer industrial component. Key specifications include material: COPPER AND NICKEL ALLOY, special_features: MATERIAL PER MIL-C-20159, TYPE 1, supplementary_features: NEXT HIGHER ASSEMBLY: BALL LINE VALVE, 3"X3"X3", 3 PORT ASSEMBLY AND DETAIL, end_item_identification: SSN (FAST ATTACK SUB), general_characteristics_item_description: 3 IN. BALL VALVE IN, part_name_assigned_by_controlling_agency: TAILPIECE, STRAIGHT.

This part is cataloged in the U.S. Government catalog under NSN 4810-01-322-5234, 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
256123 PIECE 6
NSN: 4810-01-322-5234
FSC: 4810 — Valves, Powered
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
materialCOPPER AND NICKEL ALLOY
special_featuresMATERIAL PER MIL-C-20159, TYPE 1
supplementary_featuresNEXT HIGHER ASSEMBLY: BALL LINE VALVE, 3"X3"X3", 3 PORT ASSEMBLY AND DETAIL
end_item_identificationSSN (FAST ATTACK SUB)
general_characteristics_item_description3 IN. BALL VALVE IN
part_name_assigned_by_controlling_agencyTAILPIECE, STRAIGHT
NSN4810-01-322-5234
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 256123 PIECE 6 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: 3 IN. BALL VALVE IN
•
SUPPLEMENTARY FEATURES: NEXT HIGHER ASSEMBLY: BALL LINE VALVE, 3"X3"X3", 3 PORT ASSEMBLY AND DETAIL
•
MATERIAL: COPPER AND NICKEL ALLOY
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTION3 IN. BALL VALVE IN
SUPPLEMENTARY FEATURESNEXT HIGHER ASSEMBLY: BALL LINE VALVE, 3"X3"X3", 3 PORT ASSEMBLY AND DETAIL
SPECIAL FEATURESMATERIAL PER MIL-C-20159, TYPE 1
PART NAME ASSIGNED BY CONTROLLING AGENCYTAILPIECE, STRAIGHT
END ITEM IDENTIFICATIONSSN (FAST ATTACK SUB)
MATERIALCOPPER AND NICKEL ALLOY
OTHER ITEMS IN FSC 4810 — Valves, Powered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4810-00-001-1247 4810-00-001-4499 4810-00-001-4531 4810-00-001-4532 4810-00-001-4554 4810-00-001-4555 4810-00-001-4556 4810-00-001-4611
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 256123 PIECE 6?
256123 PIECE 6 is a TAILPEACE,BALL VALV.
What is the NSN for 256123 PIECE 6?
256123 PIECE 6 is cataloged in the U.S. Government catalog under NSN 4810-01-322-5234. 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.