PartsTable
Technical Data Sheet
51621 ✓ Verified by PartsTable
Hama · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

<b>With padded earpieces for undisturbed listening and game or telephone sessions which last for hours</b><br>- Adjustable microphone<br>- Adjustable bands<br>- Single-sided cable<br>- In-line volume control and microphone mute<br>- 2x 3.5 mm jack plug for connection to a PC/notebook<br>- Very long cable<br>- Colour: gold/black<br><br><b>Technical details (headphones):</b><br>- Power output: max. 105 mW<br>- Frequency range: 20 Hz - 18 kHz<br>- Sensitivity: 104 dB<br>- Impedance: 32 ohms<br><br><b>Technical details (microphone):</b><br>- Frequency range: 50 Hz - 16 kHz<br>- Sensitivity: 60 dB +/- 3 dB<br>- Impedance: low This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-423-0879, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
51621
NSN: 5305-00-423-0879
FSC: 5305
CAGE: 55469 — ESSEX INDUSTRIES, INC. DBA ESSEX INDUSTRIES (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
chain_typeBALL
clasp_typeALLIGATOR JAW
chain_length10.000 INCHES MINIMUM AND 12.250 INCHES MAXIMUM IN
special_featuresOVERALL LENGTH SHALL BE 12.750 IN. MIN, 15.000 IN. MAX; UNIT PKG QTY: 12 IN
part_name_assigned_by_controlling_agencyHOLDER NAPKIN DENTAL 12 PER PACKAGE
NSN5305-00-423-0879
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 51621 · Hama ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
51621Interchangeable
interchangeable cross-reference
interchangeable
CFSP-11517Interchangeable
interchangeable cross-reference
interchangeable
S1621Interchangeable
interchangeable cross-reference
interchangeable
5-1-44Interchangeable
interchangeable cross-reference
interchangeable
MIL-F-2692Interchangeable
interchangeable cross-reference
interchangeable
M51621Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 51621?
51621 is a SEAL,PLAIN ENCASED manufactured by Hama.
What parts can replace 51621?
There are 6 known substitutes for 51621: 51621, CFSP-11517, S1621 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 51621?
51621 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-423-0879. This indicates validated use in U.S. government and defense supply chains.
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