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257388 PIECE 5 — STEM,FLUID VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

257388 PIECE 5: STEM,FLUID VALVE.

The STEM,FLUID VALVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, overall_length: 6.844 INCHES NOMINAL IN, features_provided: THREADED, stem_actuating_end_type: SQUARE, largest_outside_diameter: 1.242 INCHES MINIMUM AND 1.244 INCHES MAXIMUM IN, valve_size_for_which_designed: 2.000 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-332-6995, 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
257388 PIECE 5
NSN: 4820-01-332-6995
FSC: 4820 — Valves, Nonpowered
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
materialCOPPER ALLOY
overall_length6.844 INCHES NOMINAL IN
features_providedTHREADED
stem_actuating_end_typeSQUARE
largest_outside_diameter1.242 INCHES MINIMUM AND 1.244 INCHES MAXIMUM IN
valve_size_for_which_designed2.000 INCHES IN
valve_type_for_which_designedBALL
criticality_code_justificationZZZY
material_document_and_classificationMIL-B-24059 MIL SPEC SINGLE MATERIAL RESPONSE
reference_number_differentiating_characteristicsMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMSFOR LEVEL 1 ITEMS
NSN4820-01-332-6995
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 257388 PIECE 5 · 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
•
VALVE TYPE FOR WHICH DESIGNED: BALL
•
LARGEST OUTSIDE DIAMETER: 1.242 INCHES MINIMUM AND 1.244 INCHES MAXIMUM IN
•
STEM ACTUATING END TYPE: SQUARE
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-24059 MIL SPEC SINGLE MATERIAL RESPONSE
•
FEATURES PROVIDED: THREADED
•
VALVE SIZE FOR WHICH DESIGNED: 2.000 INCHES IN
TECHNICAL CHARACTERISTICS
VALVE TYPE FOR WHICH DESIGNEDBALL
LARGEST OUTSIDE DIAMETER1.242 INCHES MINIMUM AND 1.244 INCHES MAXIMUM IN
STEM ACTUATING END TYPESQUARE
CRITICALITY CODE JUSTIFICATIONZZZY
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-24059 MIL SPEC SINGLE MATERIAL RESPONSE
OVERALL LENGTH6.844 INCHES NOMINAL IN
FEATURES PROVIDEDTHREADED
VALVE SIZE FOR WHICH DESIGNED2.000 INCHES IN
MATERIALCOPPER ALLOY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMSFOR LEVEL 1 ITEMS
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 5
257388 PIECE 5L1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
257389, PIECE 5Reference document
Same NSN cross-reference
Reference document — Secondary reference
257389, PIECE 5 L1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
9737044Reference document
Same NSN cross-reference
Reference document — Secondary reference
9737044L1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 257388 PIECE 5?
257388 PIECE 5 is a STEM,FLUID VALVE.
What parts can replace 257388 PIECE 5?
There are 5 known substitutes for 257388 PIECE 5: 257388 PIECE 5L1, 257389, PIECE 5, 257389, PIECE 5 L1 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 257388 PIECE 5?
257388 PIECE 5 is cataloged in the U.S. Government catalog under NSN 4820-01-332-6995. This indicates validated use in U.S. government and defense supply chains.
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