Home · FSC 5320 Rivets · NSN 5320-00-004-4035

NSN 5320-00-004-4035 — Collar,Pin-Rivet

NIIN 00-004-4035 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

Buying rhythm

from 4 government buys since 2017

The government has bought this item about every 3.6 years (loose, gaps vary ±63%). Last buy Sep 10, 2026. The gaps are too uneven to put a window on the next one. 1 solicitation is open right now.

How well this works: for loose items, "next buy about one typical gap after the last, give or take 136 days" caught the actual next buy 37% of the time across 34,631 past buys, against 24% for a fixed "one year later" guess. A rhythm, not a schedule: DLA buys when stock and demand say so. Every item due for a buy now.

NSN 5320-00-004-4035 is the national stock number for a collar,pin-rivet in federal supply class 5320 (Rivets). It cross-references to 4 manufacturer part numbers from 11 CAGE codes, including Hi-Shear Corporation, Leonardo Spa Helicopters Division - Production Site, Howmet Global Fastening Systems Inc Div Torrance Operations; the primary is HL86W-6. The unit of issue is EA and the FLIS list price is $4.71.

The U.S. government has bought this item 10 times on record, 2 of them in the last 24 months, most recently on September 10, 2026 at $7.89 each from B S F (Business Solutions Fasteners) International Inc.. The median unit price paid over 36 months is $7.89. 2 solicitations are open right now, the soonest due October 2, 2026 for 2,703 EA. No seller has confirmed stock of it here in the last 60 days; watching the number is free and the first listing triggers an alert.

part numbers from 11 CAGEs

open solicitations, all agencies

government buys in 24 months · median $7.89

sellers with confirmed stock

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Cross-references

Part numbers filed against this stock number, with the manufacturer (CAGE) and the FLIS reference codes.

Part number	CAGE	Manufacturer	Reference	Variation
HL86W6	73197	Hi-Shear Corporation	3 · Design control (vendor)	2 · Fully interchangeable
HL86W-6	A0126	Leonardo Spa Helicopters Division - Production Site	5 · Secondary reference	2 · Fully interchangeable
HL86W6	92215	Howmet Global Fastening Systems Inc Div Torrance Operations	5 · Secondary reference	9 · Reference only
HL86W6	C4293	Fairchild Fasteners Europe - Vsd Gmbh	5 · Secondary reference	2 · Fully interchangeable
HL86W6	A0311	Tecno Trade S.R.L.	5 · Secondary reference	2 · Fully interchangeable
HL86W6	17446	Huck International, Inc	5 · Secondary reference	2 · Fully interchangeable
HL86W6	60516	West Coast Aerospace, Inc.	5 · Secondary reference	2 · Fully interchangeable
HL86W6	06725	Sps Technologies, LLC	5 · Secondary reference	2 · Fully interchangeable
HL86W6	56878	Sps Technologies, LLC	5 · Secondary reference	2 · Fully interchangeable
HL86W6	R1120	Satair A/S	5 · Secondary reference	2 · Fully interchangeable
QD3255-04-06	K6539	Pall Manufacturing Uk Limited	5 · Secondary reference	2 · Fully interchangeable
QQ40009	K6539	Pall Manufacturing Uk Limited	5 · Secondary reference	2 · Fully interchangeable

Government demand

Open DLA RFQs (DIBBS)

SPE4A626U4307 · 2,703 EA · due Oct 2, 2026 · N · AMSC C · DIBBS

Open notices, other agencies (SAM.gov)

Defense Logistics Agency · Dla Aviation · COLLAR,PIN-RIVET · due Oct 2, 2026 · Combined Synopsis/Solicitation

What the government paid

Date	Vendor	Qty	Unit cost	Amount	Buyer	Reference
Sep 10, 2026	B S F (Business Solutions Fasteners) International Inc. L2519	5,868	$7.89		Dla	SPE4A626P0P34
Sep 10, 2026	B S F (Business Solutions Fasteners) International Inc. L2519			$46,299	Dla	SPE4A626P0P34 » Award/Basic Package View
Jan 30, 2023	Boeing Distribution Services, Inc. 2V484	3,801	$2.32		Dla	SPE4A623PA744
Jan 17, 2023	Clarendon Specialty Fasteners, Inc. 6E4Y3	465	$2.75		Dla	SPE4A623P9225
Aug 8, 2022	Clarendon Specialty Fasteners, Inc. 6E4Y3	5,497	$1.30		Dla	SPE4A622PT631
Jul 20, 2017	All Certified Fasteners, Inc. Div Tab Hardware 74WM3	6,365	$1.35		Dla	SPE5E917V5379
Aug 25, 2016	Adept Fasteners Inc 1V0G6	11,089	$1.16		Dla	SPE5E916M2624
May 29, 2016	Peerless Aerospace, LLC 2G586	6,551	$1.39		Dla	SPE5E916M1896
Mar 30, 2015	Peerless Aerospace, LLC 2G586	5,365	$1.17		Dla	SPE5E915M1299
Sep 24, 2013	Peerless Aerospace, LLC 2G586	131	$1.74		Dla	SPE5E913V0142

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 10 buys on record in total.

Sellers with confirmed stock

No seller has confirmed stock on this NSN in the last 60 days. Watch it and we will email you when one does, or request a quote on HL86W-6.

Listings appear here only while the seller has confirmed them within 60 days. Sellers: list this part free.

DLA management data

FLIS unit price: $4.71
Unit of issue: EA
Acquisition advice: Z — Insurance item
Source of supply: SMS
Effective: Oct 1, 2025

Item characteristics

Thread Class: 3B
Thread Direction: RIGHT-HAND
Collar Outside Diameter: INCHES MINIMUM 0.303 AND INCHES MAXIMUM 0.307
Collar Overall Height: INCHES MINIMUM 0.437 AND INCHES MAXIMUM 0.457
Lubrication: CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP
Collar Inside Diameter: INCHES MINIMUM 0.192 AND INCHES MAXIMUM 0.200
Thread Quantity Per Inch: 32
Nominal Thread Size: INCHES 0.190
Material: WASHER STEEL COMP 301 OR STEEL COMP 302B OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL CO
Material: BODY STEEL COMP 303SE
Surface Treatment: OVERALL CADMIUM
Surface Treatment Document And Classification: OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--416,TYE 1,CLASS 2
Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF)

About this page

An NSN is 13 digits: the 4-digit Federal Supply Class and the 9-digit NIIN. Cross-references come from the federal logistics record; demand from DLA DIBBS, SAM.gov and FPDS; ADs from the Federal Register. Refreshed nightly. Market Pulse shows the whole market.