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302900 — FILTER,BAND PASS

✓ Government record, cited
Biamp · MRO · MRO_GENERAL
PRODUCT OVERVIEW

302900: FILTER,BAND PASS.

The Tesira SEC-4 is a modular analog input card for use with Tesira SERVER and SERVER-IO devices. Each SEC-4 provides four channels of mic or line level audio input with Acoustic Echo Cancellation and also features Biamp SpeechSense™ technology, which enhances speech processing by more accurately identifying human speech. The Tesira SEC-4 & Tesira SEC-4 CK comply with the United States Trade Agreement Act (TAA), allowing it to be included in GSA Schedule contractors’ sales bids for the U.S.

federal government. This part is cataloged in the U.S. Government catalog under NSN 5305-00-638-1804, indicating validated use in U.S.

government and defense logistics supply chains.

WHERE IT FITS
MRO→ MRO_GENERAL→ 302900
NSN: 5305-00-638-1804
NIINs: 006381804, 014161528
FSC: 5305 — Screws
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
body_width0.350 INCHES NOMINAL IN
head_styleHEXAGON
body_height0.510 INCHES NOMINAL IN
body_length0.500 INCHES NOMINAL IN
head_height0.136 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
thread_length0.584 INCHES MINIMUM AND 0.604 INCHES MAXIMUM IN
inclosure_typeENCASED
overall_length1.310 INCHES NOMINAL IN
screw_materialSTEEL COMP 601
fastener_length0.584 INCHES MINIMUM AND 0.604 INCHES MAXIMUM IN
hardness_rating30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
style_designatorRECTANGULAR TERMINAL/TERMINALS ON OPPOSITE SURFACES
NSN5305-00-638-1804
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 302900 · Biamp ⚠ 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
KEY FEATURES
•
HEAD HEIGHT: 0.136 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
•
SCREW SURFACE TREATMENT: CADMIUM OR ZINC
•
FASTENER LENGTH: 0.584 INCHES MINIMUM AND 0.604 INCHES MAXIMUM IN
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6304 ASSN STD SINGLE MATERIAL RESPONSE
•
THREAD LENGTH: 0.584 INCHES MINIMUM AND 0.604 INCHES MAXIMUM IN
•
HARDNESS RATING: 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.136 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
SCREW SURFACE TREATMENTCADMIUM OR ZINC
FASTENER LENGTH0.584 INCHES MINIMUM AND 0.604 INCHES MAXIMUM IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6304 ASSN STD SINGLE MATERIAL RESPONSE
THREAD LENGTH0.584 INCHES MINIMUM AND 0.604 INCHES MAXIMUM IN
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.368 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 302900?
302900 is a FILTER,BAND PASS manufactured by Biamp. It is classified as a MRO (MRO_GENERAL).
What is the NSN for 302900?
302900 is cataloged in the U.S. Government catalog under NSN 5305-00-638-1804. This indicates validated use in U.S. government and defense supply chains.
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