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57157 — SHIELD,HEAT,NONAIRCRAFT GAS TURB

✓ Government record, cited
Hama · GATE VALVE
PRODUCT OVERVIEW

57157: SHIELD,HEAT,NONAIRCRAFT GAS TURB.

- Versatile design headset for gaming, music, speech programs, VoiP etc. - Flexibly adjustable microphone arm - Sensitive and highly flexible microphone - Volume control and microphone mute integrated into the cable - Padded earpieces for comfortable wearing comfort - One-sided cable run - Plug: 2x 3.5 mm jack, stereo - Cable length: 2.4 m - Colour: zebra black - Technical data (headphone): - Power: max. 100 mW - Frequency range: 20 Hz - 20 kHz - Sensitivity: 113dB +/- 3dB - Impedance: 32 ohms - Technical data (microphone): - Frequency range: 15 Hz - 20 kHz - Sensitivity: 58 dB +/- 2 dB - Impedance: low This part is cataloged in the U.S.

Government catalog under NSN 4820-00-421-7044, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
57157
NSN: 4820-00-421-7044
NIINs: 004217044, 007938007, 011004955
FSC: 4820 — Valves, Nonpowered
CAGE: 53059 — SPIRAX SARCO INC DBA SPIRAX SARCO (USA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyEXERCISER LUNG INHALATION THERAPY INDIC SCALE100TO1200CC/SEC 12S
NSN4820-00-421-7044
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 57157 · 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
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COMPONENT QUANTITY: 7
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NONSUPPLY ITEMS AND QUANTITIES: CAP 1,SEAT 1,BODY/DIAPHRAGM CASE 1,PILOT GASKETS 4
TECHNICAL CHARACTERISTICS
COMPONENT QUANTITY7
NONSUPPLY ITEMS AND QUANTITIESCAP 1,SEAT 1,BODY/DIAPHRAGM CASE 1,PILOT GASKETS 4
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 57157?
57157 is a SHIELD,HEAT,NONAIRCRAFT GAS TURB manufactured by Hama.
What is the NSN for 57157?
57157 is cataloged in the U.S. Government catalog under NSN 4820-00-421-7044. 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.