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Technical Data Sheet
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57151 — DIAPHRAGM,VALVE,FLAT

✓ Government record, cited
Hama · GATE VALVE
PRODUCT OVERVIEW

57151: DIAPHRAGM,VALVE,FLAT.

- The optimum for internet telephony (VoIP) or speech recognition at the notebook. - Very small microphone, only 23 x 32 mm. - Plug & play with every sound card.

- 3.5 mm jack plug. Technical details: -Microphone type: condenser. -Alignment: cardioid.

-Frequency range: 30-16000 Hz. -Sensitivity: -62 +/- 3 dB. -Impedance: 1.4 kOhm.

This part is cataloged in the U.S. Government catalog under NSN 4820-00-106-3983, 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
57151
NSN: 4820-00-106-3983
NIINs: 001063983, 010444979, 017108059
FSC: 4820 — Valves, Nonpowered
CAGE: 53059 — SPIRAX SARCO INC DBA SPIRAX SARCO (USA)
SPECIFICATIONS
body_diameter3.69 INCHES NOMINAL IN
style_designatorCYLINDRICAL W/ INTEGRAL OUTER CASING
body_overall_length6.932 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyOIL FILTER
NSN4820-00-106-3983
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 57151 · Hama ⚠ 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
•
TEMP RATING: 120.0 FAHRENHEIT MINIMUM AND 180.0 FAHRENHEIT MAXIMUM DEGF
•
OUTSIDE DIAMETER: 7.000 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLAT
•
MATERIAL THICKNESS: 0.005 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS
TEMP RATING120.0 FAHRENHEIT MINIMUM AND 180.0 FAHRENHEIT MAXIMUM DEGF
OUTSIDE DIAMETER7.000 INCHES NOMINAL IN
STYLE DESIGNATORFLAT
MATERIAL THICKNESS0.005 INCHES NOMINAL IN
MATERIALCOPPER ALLOY
SUBSTITUTES & CROSS-REFERENCES 1
645P75PC10-1-1-Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 57151?
57151 is a DIAPHRAGM,VALVE,FLAT manufactured by Hama.
What parts can replace 57151?
There is 1 known substitute for 57151: 645P75PC10-1-1-. Substitute compatibility should be verified for your specific system.
What is the NSN for 57151?
57151 is cataloged in the U.S. Government catalog under NSN 4820-00-106-3983. 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.