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Technical Data Sheet
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47977 — SEAT,VALVE

✓ Government record, cited
Hama · BOLT SCREW
PRODUCT OVERVIEW

47977: SEAT,VALVE.

- For connecting several digital receivers - Sturdy metal housing for protection against damage and outside interference - Gold-plated plug with low contact resistance for secure signal transition - Due to its slim construction optimized for multifeed systems with very low LNB spacing (satellite positioning of up to 3° possible) - Cooling ribs for optimized heat distribution and constant temperature of the electronics - With integrated multi-switch for 4 users - Suitable for receiving 3D TV/HDTV - The feedhorn adapter ring enlargens the diameter of the "Multifeed" feedhorn from 23 mm to 40 mm which allows the LNB to be mounted in standard feed holders - The new feedhorn concept allows better satellite focusing and reduces effects thanks to minor lobes (e.g. position of adjacent satellites) - Excellent values for cross polarisation, decoupling, linear noise figure and amplification over the complete reception range - Low power consumption Note for This part is cataloged in the U.S. Government catalog under NSN 5306-00-834-8450, indicating validated use in U.S.

government and defense logistics supply chains.

WHERE IT FITS
47977
NSN: 5306-00-834-8450
NIINs: 008348450, 010791992, 013042842
FSC: 5306 — Bolts
CAGE: 13841 — TIFFIN PARTS, L.L.C. DIV SUBSIDIARY OF PETTIBONE CORP. (USA)
SPECIFICATIONS
special_featuresFOR HIGH PRESSURE INTAKE
NSN5306-00-834-8450
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 47977 · 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
KEY FEATURES
•
HEAD HEIGHT: 0.219 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.406 INCHES NOMINAL IN
•
THREAD LENGTH: 0.603 INCHES MINIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: BW278M GRADE B FSCM 06853 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
GRIP LENGTH: 0.803 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.219 INCHES NOMINAL IN
FASTENER LENGTH1.406 INCHES NOMINAL IN
THREAD LENGTH0.603 INCHES MINIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONBW278M GRADE B FSCM 06853 MFR REF SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH0.803 INCHES NOMINAL IN
WIDTH BETWEEN FLATS0.500 INCHES NOMINAL IN
GRIP DIAMETER0.3125 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
9M5181Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 47977?
47977 is a SEAT,VALVE manufactured by Hama.
What parts can replace 47977?
There is 1 known substitute for 47977: 9M5181. Substitute compatibility should be verified for your specific system.
What is the NSN for 47977?
47977 is cataloged in the U.S. Government catalog under NSN 5306-00-834-8450. This indicates validated use in U.S. government and defense supply chains.
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