HT271A4-11M
View detailed technical data, stock status, and sourcing information for: HT271A4-11M
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A resilient metal item, circular or nearly circular, which is designed to be inserted into an internal or external groove and retained by its own spring action, or it may have external prongs or projections designed to be inserted into a hole and retained by spring action of the prongs which grip by imbedding into the material. For items having internal prongs which perform the same function, see push on nut. It is used to keep and/or lock a part(s) in position, as a ball bearing on a shaft or in a housing. See also clip, retaining and pin, lock. Excludes:ring, connecting, round.
1.1405 inches minimum and 1.1875 inches maximum fastener length, 0.469 inches nominal thread length, 3a thread class, right-hand thread direction, flat countersunk head style
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Thread Class
- 3a
- Thread Direction
- right-hand
- Thread Length
- 0.469 inches nominal
- Fastener Length
- 1.1405 inches minimum and 1.1875 inches maximum
- Head Style
- flat countersunk
- Head Diameter
- 0.5018 inches minimum and 0.5066 inches maximum
- Head Height
- 0.0713 inches minimum and 0.0733 inches maximum
- Grip Diameter
- 0.2490 inches minimum and 0.2495 inches maximum
- Internal Drive Style
- high-torque
- End Item Identification
- f-15ex
- Nominal Thread Diameter
- 0.2500 inches
- Grip Length
- 0.6775 inches minimum and 0.6975 inches maximum
- Features Provided
- dry film lubricant and cetyl alcohol lubricant
- Thread Quantity Per Inch
- 28
- Countersink Angle
- 100.0 degrees nominal
- Part Name Assigned By Controlling Agency
- screw,close tolerance-assembled o-ring,100 deg modified head,dovetail slot,titanium
- Material
- rubber fluorosilicone class fq ring
- Material
- titanium alloy fastener
- Material Document And Classification
- 6al-4v per nas621 national std/spec single material response fastener
- Material Document And Classification
- st3-251 mfr ref single material response ring
- Thread Series Designator
- unjf
- Specification/Standard Data
- 76301-st3-430 manufacturers standard
Related Parts
This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:
| Part Number | Name |
|---|---|
| 110179-4-11ASM | Close Tolerance Screw |
| BM33024V4-11UM | Close Tolerance Screw |
| HT271A4-11M | Close Tolerance Screw |
| HT8137-4-11ASM | Close Tolerance Screw |
| ST3M430V4-11ASM | Close Tolerance Screw |
| WC8137-4-11AM | Close Tolerance Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-01-720-0300?
Does the NSN 5305-01-720-0300 have a Schedule B code assigned?
Does NSN 5305-01-720-0300 require demilitarization?
Does NSN 5305-01-720-0300 contain precious materials?
Does NSN 5305-01-720-0300 contain hazardous materials?
When the NSN 5305-01-720-0300 was assigned to the Federal Catalog?
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