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NSN: 5320-01-591-2908 | Model: HL646-12-20

A metallic or nonmetallic item, headed at one end, with a cylindrically shaped shank which may be tapered, grooved, or threaded. a locking collar or sleeve may be provided to perform the same holding action as the clinching portion of a conventional rivet. the shank may include an external wrenching facility which breaks off at a predetermined applied torque.

NSN Properties and Flags
NATO Stock Number
Thread Class
Fastener Length
Between 1.785 inches and 1.805 inches
Head Style
Straight pan
Head Height
Between 0.130 inches and 0.140 inches
Width Between Flats
0.158 mils and 0.161 centimeters
Shank Diameter
Between 0.373 inches and 0.374 inches
Shank Style
Pin-rivet, straight, threaded
Head Major Diameter
Between 0.565 inches and 0.600 inches
Solid film
Grip Length
1.245 mils and 1.255 centimeters
Thready Qty Per Inch (tpi)
Thread Size
0.375 inches
Special Features
Thread rolled per mil-s-8879 (modified) major diameter shall be .364 to .368 inches.
Steel comp xm-13
Thread Series Designator

Inventory Check

The last inventory check on this NSN was done on 09/28/2022. Due to rapid changes in inventory this may not be the current stock qty.

  • New Surplus: 13

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

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NSN 5320-01-591-2908 Datasheet

Supply Class (FSC):
Cross Reference:
  • HL646-12-20
  • HL646-12-20
  • HL646-12-20
  • HL646-12-20
  • HL646-12-20
  • HL646-12-20
  • HL646-12-20
  • HL646-12-20
Cage Codes:
  • Shear Corporation Hi (CAGE 73197)
  • Huck International, Inc. (CAGE 17446)
  • Sps Technologies, Llc (CAGE 06725)
  • Fleet Mfg Co Inc (CAGE 09650)
  • Sps Technologies, Llc (CAGE 56878)
  • West Coast Aerospace Inc (CAGE 60516)
  • Sps Technologies Ltd Tj Brooks (CAGE K5673)
  • Lisi Aerospace Canada Corp (CAGE L4528)
Schedule B & Trade:
  • Schedule B: 7318230000 (NAICS 332722)

    Rivets of iron or steel

  • SITC: 69422

    Screws, bolts, nuts, screw hooks, rivets, washers and similar articles, not threaded, of iron or steel

  • End Use: 12300

    Finished metal shapes


N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.


A - Item does not contain precious metal.


- Represents items with no adp components


- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Freight Information:
  • NMFC:

    106510 - Rivets i/s plain/galvanized etc

  • WCC:

    713 - Metal hardware

  • SHC:

    9 - Other or no special handling required (sh)

  • ACC:

    A - Supplies and equipment for aircraft and aerial targets, including aircraft and maintenance parts, aircraft accessories, aircraft

  • ADC:

    A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

  • LTL:

    U - 50.0

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
  • AAC
  • Quantity per pack
  • Unit of Measure
  • Shelf Life
  • Classification Control
  • Repariability

Questions & Answers:

What are the historical prices recorded for this stock number?
Historical data shows pricing from $603.37 to $1,005.62..
Does NSN 5320-01-591-2908 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Air Force
What is the NIIN of NSN 5320-01-591-2908?
015912908 or 01-591-2908
Does NSN 5320-01-591-2908 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5320-01-591-2908?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jan 19, 2011